Showing posts with label Defense. Show all posts
Showing posts with label Defense. Show all posts

Sunday, January 23, 2011

BRACKET COVERAGE PART III: Combination Brackets

This is part III of the series on Bracket Coverage. You can read Part I and Part II to get caught up to speed.

Combination brackets are match style brackets. At times the coverages can appear like quarters coverage after the pattern distribution. The difference between combo brackets and match-up zone, is the more aggressive man nature of combo-brackets.

I use the term combo brackets for these coverage because they usually involve bracket concepts combined with a man read concept. Before I get to confusing about the whole process, lets jump in a look at 3 different combination brackets.

COVER BLACK


I have already discussed this coverage previously, but it is the first and easiest combo bracket to understand.


This coverage involves "cone"and "bracket"technique put together. The SS is playing out and up on #2 and the corner is playing out and up of #1. The FS is in the read technique. He is looking to cut and match the 1st inside cut of speed. The Bracket concept becomes clear when the 1st inside cut of speed occurs. If the slot is the first cut, the coverage works like "bracket" if the #1 WR is the first cut it plays like cone.

The key to a coverage like this is to know what it is great against. This coverage is designed to stop routes that involved people breaking to the outside. Specifically it can cover double out routes with no problem. Typical sprint out concepts have trouble versus this coverage. For Example:



MIX COVERAGE


Mix coverage combines the two main bracket types, in/out and under/over.

This is confusing for the quarterback and offers bracket coverage on both #2 and #1. This coverage is trying to get double coverage on 2 receivers using only 3 defenders. This might sound like a paradox but it really isn't. The underneath routes of #1 are handled by the SS exclusively hence the trail technique. The under routes of #2 will be handled by either the corner of FS. If both #1 and #2 are vertical the FS will be pushing #2 towards him while the SS will force a high throw to the #1 WR. In both cases the QB's throwing window will be an air ball towards a deep corner who will be in position to make a play on either WR.


If #2 breaks in you will have under/over coverage on #1 with the corner and SS:


If #2 breaks out, the FS will play #1 over while the SS plays under.

If the #1 WR breaks off his route the SS will take him, and you will have the FS and corner playing #2 in and out.

You can see this coverage is strong versus underneath routes. The major benefit to this coverage is that it can be disguised easily.

SQUEEZE COVERAGE

Squeeze might be my favorite combo-bracket of all.


I don't want to get redundant, but if you understand the principals behind the other coverage I have discussed in this article, then this should make sense. This is simply a combo bracket that closely resembles a pattern read cover 2. The corner is M/M out and up of #1 unless #2 works out. Essentially "Cone" with a read on #2. The SS is the inverse of the corner. Essentially playing deuce with a read on #1. The FS is looking to double the first up field route or split the difference between double verticals.

This bracket squeezes both WR's and allows most vertical and interminably routes to be played effectively. The problem routes are those that involve both WR's working in or out.




I am sorry these posts are coming out later than expected. Off-season, power-lifting, and standardized testing are in the full swing of things. I am looking to do more work on split safety zone blitzes, playing the power running game from the 4-2-5, and scheming empty formations. Is there anything anyone in particular is interested in reading about? Leave a comment if you have a suggestion; I want to write about stuff that people are interested in most.

Friday, September 3, 2010

Play Action Passes-Defending the Bootleg

I apologize for the return to the 60's hand drawn diagrams. Football season makes it hard to find enough time to write a post much less design the diagrams for it. I hope that the drawing do the job of illustrating my point.

Power running and pro-style offenses use play action passes to keep the defense off balance. One of the most difficult types of play-action passes to defend, is the bootleg. The bootleg puts pressure on the defense because it begins as a play that shows run action in one direction and then develops into a passing play attacking the defense the other direction. The bulk of the pressure comes from the offense forcing the defense to pursue one way and then have to quickly change direction and locate passing threats while simultaneously containing the quarterback. In this post I will explore defending the bootleg. First, I will explain the idea and concept of the bootleg. Then I will give a few examples of how to defend it out of cover 3 and quarters.

UNDERSTANDING THE BOOTLEG

To understand the bootleg, you must first understand the major reason that running teams use it.


#1 It punishes over-aggressive run play

The bootleg is an often used play, but derives it power the same way an infrequent trick play does. What are trick plays used for? For the most part it is not intended to "trick" the defense as much as it is designed to keep the D honest. For example, if the offenses is a big toss sweep team, they should have a toss pass in their game plan. This is important because it is needed to keep the corner and or safety from playing the toss too aggressively. If a toss team begins to notice that the corners and/or safety are playing the toss too aggressively, then they should run the toss pass. This is smart for two reason: First, it takes advantage of the opportunity to make a big time play. Second, it will take away the aggressiveness of the corner and/or safety, even if the ball falls incomplete. In effect the toss pass is the playbook to keep the defense honest. If the defense chooses to play the run over aggressively, then they will be punished by the bootleg pass.

#2 It utilizes 5 threats to attack the defense

The bootleg applies just like the toss pass, however defending it is more complicated then the toss pass. The toss pass involves one major threat and requires one player to defend it. On the other hand, the bootleg offers up to 6 threats. The more threats a play has, the more difficult it is to defend. This is the feature that makes the bootleg a great play. The majority of play action passes usually involve 4 threats. The bootleg usually has at least 5.


There are 5 Threats

1. Flat Route
2. Intermediate Route
3. Deep Route
4. Back Side Stretch route (post or dig)
5. Quarterback Run

* There is the 6th threat of the RB throwback, but I will not explore that option here, I classify that play as a trick play that punishes a defenses backside defenders for over pursuing.

The fifth threat is what separates the boot from other play-action passes. In normal play-action passes the QB sets up to read the defense, but in the bootleg he is rolling out away from flow and becomes a downhill running threat. If you are able to cover all the routes, you still have the threat of the quarterback run.

#3 It is simple to execute and change up

The boot is also easy for the offense to change up. They can run the same concept with the same reads, but be able to change up the routes. For example, they can run the boot strong and get the same look.


Not much has changed other then direction and the fact that TE runs a settle route. This route is still the intermediate read for the offense. The other 4 routes are present. The boot can be run from almost any formation as well.


Here the boot is happening out of double tight 1-back. Even though the TE (Y) and Z WR are running different routes (a push and post-corner), they are still attacking the flat and deep.


The boot can be extremely dangerous from overloaded formations like this. These sets force the defense to adjust on alignment and still maintain the ability to cover all 5 threats of the bootleg.

DEFENDING THE BOOTLEG

The first step in developing a sound defense for the bootleg is to develop rules and recognition points for bootleg strong and bootleg weak. These rules vary depending on the coverage called.

Cover 3 (Middle of the Field Coverage)

Rules for bootleg weak:

Play Side:

Flat defender----Gain Depth and break on the flat route
Corner-- Cover the deep route #3
Hook Defender---- Find and cover the drag#2
Free Safety------ Protect the middle field and eliminate the post#4

Back Side:

Flat Defender------ Check RB for throwback pass & get under the backside WR if he runs a dig#4
Corner---- Squeeze the Post to the FS #4
Hook Defender---- Become secondary contain on the QB. #5




The play side flat defender needs to gain depth and maintain leverage with the fullback attacking the flat. This is intended to allow the flat defender to help out on the intermediate route and be in a position to keep the flat route to a minimal gain. By gaining depth the flat defender give the QB the immediate read to throw the flat route. At times the hook defender can be sucked up on the run and have trouble getting to the drag.

Defending the strong side boot is very similar to the weak side boot.

Rules for Strong Side Boot


Play Side:

Flat defender----Gain Depth and break up on flat route #1
Corner-- Cover the deep route #3
Hook Defender---- Find and cover the settle route #2
Free Safety------ Protect the middle field and eliminate the post#4

Back Side:

Flat Defender------ Check RB for throwback pass
& get under the backside WR if he runs a dig#4
Corner---- Squeeze the Post to the FS #4
Hook Defender---- Become secondary contain on the QB. #5


The difficulty with the strong side boot is the settle route. The SS is put in a bind. If he is used to help on the settle route, the full back will be open and in a position to gain a good amount because of the SS leverage. On the other hand if he jumps the flat route, the hook defender will have a difficult time jumping the settle route. The strong side boot operates similar to the "stick" concept. It is covered more effectively if the hook defender is aware of the route and sprints to it as soon as he reads strong side boot.

Quarters Coverage (Robber coverage to the passing strength)

Rules for bootleg weak:

Play Side:

Flat defender----Pick up flat route #1
Corner-- Cover the deep route #3
Hook Defender---- Find and get under the drag#2
Free Safety------ Jump on top of the drag #2

Back Side:

Flat Defender------ Check RB for throwback pass
& get under the backside WR if he runs a dig#4
Corner---- Stay inside the post #4
Hook Defender---- Become secondary contain on the QB. #5



There is a trade off in this coverage versus Cover 3. Robber coverage allows the FS to play the intermidiate route aggressively, this is really the route the offense is looking to pick up a good chunk of yardage and/or first down with. By playing the FS on the intermidiate route, you can provide stronger coverage on the main two options that the QB wants to throw without relying on a linebacker that is caught in a run/pass conflict. However, the drawback is that the backside corner has to defend the post alone...... this is the most difficult route for the corner to defend. The one point of relief is that even if the post does come open, it is the last WR that the QB checks and the hardest throw to complete.

Rules for bootleg strong:

Play Side:

Flat defender----Pick up flat route #1
Corner-- Cover the deep route #3
Hook Defender---- Find and get under the Settle#2
Free Safety------ Jump on top of the Settle #2

Back Side:

Flat Defender------ Check RB for throwback pass
& get under the backside WR if he runs a dig#4
Corner---- Stay inside the post #4
Hook Defender---- Become secondary contain on the QB. #5



Again the same trade off as before. Quarters coverage allows the free safety to play the intermediate route aggressively at the expense of putting the corner 1 on 1 with the post.

Final Point

In my opinion, and you can take it for what its worth. I am more concerned with covering receivers than reading the QB on play action passes. Upon recognizing bootleg, I believe it is more important for the defenders to find and cover the threats they are assigned to cover, than dropping while reading the QB. Bootlegs are executed by finding windows, it doesn't matter if the window is behind(vertical) or beside(Horizontal) defenders. By finding and getting to the threats, the defenders will do a better job of eliminating horizontal and vertical windows.

SUMMARY

The key to stopping the bootleg is quick recognition, and clearly defined rules. Rules allow the players to know which receivers to pick up, and keep completions to a minimum. Even if they do get sucked up on the play fake, they will know which receiver they are looking for as soon as soon as they recognize pass. Any play-action pass puts pressure on the defense. Teams will use it constantly to punish defenses that are over-aggressive on the run.

Tuesday, August 24, 2010

The Numbers Game

I apologize for not posting in quite some time. I have been stretched thin, between the hectic schedule of football season and finding time for myself. I am working on a few projects which I will post in the near future (hopefully). This post will be focused on alignment philosophy, more specifically the numbers game.


WHY A NUMBERS GAME?

With the presence of 22 players on the field at the same time, football is a numbers game. Offenses use the numbers game to take advantage of the defense while the defense attempts the offense from doing so. The rules of football allow the offense to align in multiple formations, far more than a defense can reasonably prepare for. To combat this, defensive coaches over the years have developed alignment rules and principals.

Alignment can be difficult for players, which is why good coaches teach rules to their players. Also, alignment can be difficult for the coach at times. Coaches have developed their own set of principals to help themselves with alignment to various formations. What are these principals? There are varied options amongst different coaches, but more or less they attempt to adhere to the same principals. When a defensive alignment is considered consistent with a coaches' principals it is said to be "sound".

TRAINING WHEELS-- BALANCING THE NUMBERS

Football 1 on 1 instructs defensive coaches to balance numbers with the offense. New coaches are drilled on this concept by veterans. The thought process stems from the idea that the offense will attack you, if they have a numbers advantage at the point of attack. This is a good concept, but it does not need to be taken to far.

I know a coach that I worked with when I first began coaching that followed a strict "balancing" principal. I am sure most have you have heard about balancing the numbers before, for a refresher or for those whom are not sure about what I am talking about:

Balancing the defense with the offense is a simple process of counting. You start with the offense beginning at the center; count everyone aligned to the left of the center as 1. The center, the QB, and anyone even with the ball as 1/2 a person. Second, add that total up and repeat the process for the other side. Next, draw up your defense count the players on each side of the center the same way you did with the offense, remembering to count anyone aligned even with the center as 1/2. So defensively any head up nose, backer or safety aligned over the center counts as 1/2. Finally, check your numbers to each side and see if they match. If the defenses' numbers are not consistent with the offenses' numbers then the defense is said to be misaligned.

I am not advocating this is the system to determine your alignments by any means. As I have grown as a coach I have "taken off" the training wheels. This system can help a new coach line up in a manner to avoid getting absolutely killed. However, it by no means guarantees the most effective and ideal alignment.

EXAMPLES OF BALANCING THE NUMBERS

#1


This alignment is balanced and in line with the counting system. I believe this is sound alignment versus this formation.

#2


Again in this example the numbers are balanced.

#3


This is an example of alignment that fails the numbers test. The offense has 7 to the trips side where the defense only has 6. However, I am comfortable aligning this way against trips. It is not something I will do EVERY time, but I will mix it in often enough.

IS THERE A FLAW WITH BALANCING THE NUMBERS?


I think it is a useful tool, however there are many more things to consider with alignment. Disguise, pass coverage, stunts, block angles, personnel, and motion are just some of the other things that should be considered. At a certain level it is important for a coach to take the training wheels off and consider more than just balancing the numbers with the offense. I am not trying to advocate that you should not try to balance up, but that there is more to alignment than balancing numbers with the offense.

If a coach chose to only consider balancing the numbers when determining alignments, there are numerous problems they can run into. For example,

No matter how absurd this alignment is, it is balanced according to the numbers game. If I ask the question: What is wrong with this alignment? I am sure the answers that are coming to mind have nothing to do with balance around the center.





Thursday, July 8, 2010

4-2-5 Resources

Blitzology posted links to some playbooks for people interested in the 4-2-5 defense.

Also, I have included links to two other files.

First, is a link to a 1997 article by Gary Patterson describing some of the principals and philosophy behind the 4-2-5. If you have not read it, it is a short but worthwhile article on the ideas and benifits that are behind the 4-2-5.

Second, is a link to an AFCA article by David Baliff, the current head coach at Rice University. He is the former D-line coach for TCU and Head Coach at Texas State University (formerly Southwest Texas State). He currently runs and has run a very similar scheme to Patterson's. This article details some blitz and alignment principals.

Third, is another article by Baliff where he outline some technique and schemes with d-line twists. The information on technique is excellent as well as the simplicity behind the twist game terminology, this is typical wording to anyone familiar with the 4-2-5.

Gene-Stallings- Football Philosophy

Gene Stallings was a great coach. He believed that the first step in developing a winning team began with developing a philosophy. He had very clear views of his philosophies on both offense and defense, and was insistent upon sticking to his philosophies at all cost.

OFFENSE

His stated "On offense I want to score, I want to score a touchdown, I want to kick the score, or move the ball far enough that my opponent has to go 80 yards to score." He was running the veer option one year, and lost a bowl game due to numerous offensive turnovers. In the off-season, he decided that his team needed to move away from the option. He believed that they could dedicate no more time to perfecting the mechanics of the offense, and that even the significant time they put into the previous season, was not enough to prevent these turnovers. He made this bold move because he believed that the option went against his philosophy. The schemes that a coach develops come after the development of a philosophy. Stallings calls this the "Method."


DEFENSE


Stallings impact and emphasis in football was defense. More of his time was dedicated to defense than anything. His philosophy on defense was simple: "I want to prevent my opponent from moving the ball effectively." This is pretty obvious, but he believed that not everyone ascribed to this philosophy. When it came to developing a method for his defense he believed he had to create a coordinated defense. "I want the front to coordinate with the force, and the force to coordinate with the coverage." For him, football was a game of forces, and that if he could force the ball well and defend the end run effectively, then it would make it hard for the offense to move the ball effectively.

On defending the end run, he believed that there were three key parts. These parts have become central to the development of any effective pass coverage scheme. These three parts are:

1. A player to turn the ball back inside (run force).
2. A player to play the cutback (alley)
3. A player to play the play-pass.

This is all you need to defend the end run. If each person does their job, the offense will not be able to run the ball outside. The first two parts are obvious, the third was not as much in the past. During these days the pro-I was the norm. Teams tried to establish the toss game. If the toss was getting played aggressively, then they would employ the tricky toss-pass. This play was not designed as much a "trick-play", as it was a play to keep the defense honest. The third part of defending the end run, was the player responsible for defending against these tricky plays.

He was insistent that his players understood the principals of run force as well. It was important that each of them knew their responsibility and played their part. He did not want two people forcing the ball or two people playing the play-pass. For example, if the alley player got outside with the force player, he would ask him: "Do you think that the corner can force the ball back inside?" The players would say "yes". He would then answer by asking "Then why are you trying to force the ball?"

He changed his pass coverage by changing his forces. If he was in pistol force, the corner was forcing the ball, the safety was playing the pass, and the linebacker was on the cutback. This was 1/2's coverage. He could control these forces independently on both sides. This was an early form of the split-safety coverage that is employed today. If the call was rifle force, the safety played the force, the corner was on the play pass, and the backer played the cutback. This is the same force package that modern quarters teams employ. Finally he would have box force. This was backer force. The safety played the cutback, and the corner was on the play pass. This force was used on the weak side of cover 3, and man coverage.

Stallings was also a proponent of press-man coverage. He believed that if you sat in zone, the offense would be able to move the ball effectively with short controlled passes. He would talk to coaches about getting the fear of getting beat deep out of their heads, and make a commitment to utilizing aggressive man. I am sure that most defensive coaches are still scared of press-man coverage. Stallings was probably a little uncomfortable too. However, he knew it was something he had to do in order to prevent the offense from moving the ball effectively.


BECOMING A GREAT COACH


Another part of his belief structure was on being a great coach. To be a great coach you have to be a great teacher. And to be a great teacher, you have to be able to "speak with authority". He preached the basic parts of effective teaching such as accountability and attitude. However, he stressed another, sometimes overlooked part of the job. Speaking with authority meant you were completely knowledgeable about what you were talking about. If you did not understand something fully then the players would be able to see through that.

If you are an offensive coordinator, you better know the passing concepts, blocking schemes, and the various mechanics of each position in and out. "If you don't, then you are cheating your players." The same went for defense. Also, if you were a position coach you better know that position inside and out. A great coach should know it to the extent that they are educated about it in schemes that are not part of the ones they coach.

The head coach was no different. Stallings believed that the head coach should be knowledgeable about all the aspects of football. The head coach should know offense, defense and the kicking game in depth. If not, you are cheating the team. This is crucial, if you are an offensive coach that becomes a head coach. How can you speak with authority to your defensive coordinator, about an issue you have with his scheme, if you don't know defensive football in and out? This what he believed was necessary for speaking with authority. When a coach gets up to the board to talk football, he needs to be able to speak with authority.

Finally, Stallings explained a simple process for getting to this point. He believed that a coach should dedicate one hour per day to studying football, any aspect of it. This is a time where you don't take phone calls or any other type of distraction. You can read about football, watch films, talk to others whom are knowledgeable about football, ect. If you do this consistently, after a few years "you will be an authority on any aspect of the game." This is what I love about reading football blogs, it is a time to dedicate yourself to getting better at the game.

CONCLUSION

This is just a snapshot of Gene Stallings' Philosophy. The important thing to take away from this is the commitment he made to sticking to it. He altered his offensive schemes and defensive coverage to stay consistent with what he believed. This commitment was a big part of his success. Perhaps, the biggest key to becoming a great coach was doing the things necessary to be a coach that can speak with authority about any aspect in the game of football.

This information was gathered from the 1992 and 1993 COY Manuals.

Sunday, April 11, 2010

Defending the Counter- GT Part I

The counter is a staple plays that is run across many offensive philosophies. It is the hallmark of angle blocking teams. It can cause numerous problems for the defense, and put tremendous pressure on the d-line and backers. Stopping it is a priority for most teams, whether it is run from the I, wing-t, or spread. Defending it well requires sound alignment, gap-control, and a keen understanding of run-fits. The first step to defending it, involves understanding what the play is designed to do and what key things must happen in order for the offense to execute the play effectively.

STRATEGY OF THE COUNTER-GT

The counter blocking assignments are simple. One player is assigned to kick-out an edge defender (most likely a DE), another is designed to seal a linebacker, and the rest block down and away from the play. The backs job is to run between the kick-out and seal blocks.

The rules for the blocking are quite simple. The biggest thing the offense must determine is which player will be kicked out.

The key block in the play is the Double team of the play-side defensive tackle. Whether the tackle is a 3 or shade-nose makes no difference. The goal of the offense is to blast this player backward into the backside linebacker. The aiming point for the double team is to take the d-tackle past the center. This accomplishes two goals. One, it walls off the backside backer from pursuit, and two, it widens the running lane for the back and stresses the play-side defensive end and linebacker.


If the offense can create the above situation, the defense is in trouble. Determining how to defend the counter is irrelevant. Deciding between squeezing and spilling will make no difference, because the play is gonna gain yards period. Squeezing occurs when the "kick-out" defender squeezes down the line (with the down-block) and makes contact with the guard, keeping his outside shoulder free. The idea in a squeeze is to condense the running lane and push the ball to the linebackers. However, if the double team is able to push past the center the running lane cannot be condensed adequately.




Here the DE does a good job of squeezing, however the running lane is too large because of the double team. The back has enough room to make a cut off the seal on the linebacker. The backside backer cannot help stop this.

Spilling involves the DE and backer essentially trading responsibilities. The DE's goal is to get inside the kick-out and spill the play outside where the backer can make the play. Even with a good spill the counter can still go, if the double team pushes the d-tackle past the center.

Even on a good spill the DE has to much ground to cover to properly play inside the kick-out. The back simply needs to hug the line of his center and double team. The Seal block can easily get the linebacker despite the spill.


DEFENDING THE COUNTER

Handling the Double-Team

This might seem obvious to the typical reader, but is the most important principal when defending the counter. DO NOT ALLOW THE DOUBLE TEAM TO GET MOVEMENT ON THE D-TACKLE! This is a must, don't be stubborn about it. If the O-line is strong enough to drive your D-Tackle back, and no technique can prevent it, then have the tackle cut the linemen and create a pile. You cannot allow the offense to put stress on the play-side defenders.

Run Fits

Once you take care of the double team, you can begin to formulate a strategy of how you are going to defend the counter with your play-side defenders. The main ways are to squeeze and spill. Prior to determining those two techniques, it is important to know how your players will fit into the run. The basic run-fits are detailed below:

(these can change slightly when spilling if the Tackle runs around the guard)

Versus any kick/seal play the two offensive blockers create three running lanes or "gaps". A lane on the outside of each of them and one lane in between them. The idea for the offense is to ideally create an open lane in between them. For the defense, you must be able to place defenders in a position to defend these three areas. If you do not have these three covered the offense is gonna have a running lane. Here is an example of the run-fits if the defense chooses to squeeze. (More on the squeeze will be discussed in part 2)



Using this framework, it should be easy to diagnose the problem that occurs when the double-team pushes the d-tackle past the center. Lane #3 is undefended.

CONCLUSION

This is just an introduction into defending the Counter-GT. In this section, I talked about the goals of the offense, the most important priorities for the defense, and the principals for defending the play on the play-side. In part II I will go more in depth into the techniques and principals involved in squeezing an spilling.





Tuesday, March 2, 2010

Pattern Reading vs Spot Dropping

This is a debate I deal with on a regular basis. What type of zone coverage is more effective for high school athletes. Most (if not all) colleges employ some form of pattern-match coverage. However, many high school coaches believe that this type of coverage is difficult for high school athletes to preform. In this post I will explore the pro's and con's of each.


Spot Dropping Defined

Spot dropping is just what it sounds like. On a pass read, pass defenders begin to drop back toward landmarks on the field. Terms like "Top of the numbers" "hash" , and "middle of the field" are used as horizontal markers. Then a depth is usually assigned. For example, a hook to curl linebacker could have a landmark 12-14 yards deep.

While on their landmark and in the process of dropping there, players have their head on a "swivel" reading the QB's eyes while they get to their landmark. In this scheme coaches emphasize two main things:

1. Break on the Ball
2. Gain depth

Pros
  • Simple to teach
  • Simple to execute
  • More eyes are on the ball
  • Better pursuit
  • Poor throws can easily be intercepted
Cons
  • Defenders can be stuck covering grass
  • There are many windows in the defense
  • Requires a better than average pass rush
  • A proficient passing team can slice you apart
  • Very susceptible to Intermediate routes.

Pattern Matching Defined


Rather than take your drop to a spot and wait for receivers to arrive, pattern-match coverage involves taking coverage to the most dangerous threat a defender recognizes in his zone. In this coverage defenders are taught to key certain receivers when they read pass. Usually, it is the #2 WR to their side. From the receivers action, they can diagnose whom the most likely threat to their zone is.

After a certain point, pattern-match coverage turns into man coverage. The aim of this coverage is to get the best of both worlds. Zone offers defenders the advantage of having their eyes in the backfield playing the run before the have to commit to the pass. On the other hand, man coverage puts defenders in the dark as far as the run goes, they are dialed in on the WR that they have in coverage. Pattern-reading uses zone principals early, and man principals late.


Pros
  • Fewer windows
  • Fewer completions
  • Ability to play run and cover intermediate routes
  • Defender aren't stuck covering grass
  • confusing for the quarterback
Cons
  • QB scrambles could hurt
  • Takes more time to teach initially
  • Fewer interceptions
  • more susceptible to the big play
  • more potential mismatches.

Are the Two Coverages Mutually Exclusive?


Is there a team that is purely a spot drop team or purely a pattern match team? I don't think so. In today's game of spread out offenses, no team will survive with traditional spot dropping. Conversely, in pattern matching the defenders know the general area that their coverage will be in.

In spot-dropping the underneath defenders are taught to see the QB as well as the WR's that could cross their zones. There are times the defenders are told to collision or re-route receivers. This is a principals at the heart of pattern matching.


My Position


These modern offense requires defenses to adjust. The same old style of defense is not gonna work the same way. As one side evolves the other side must as well. I am a firm believer in pattern reading. It just make sense in today's game.

The main argument against pattern-matching is difficulty. Many coaches argue that it is too difficult and that typical high school athletes cannot handle it. They reason along these lines. "Spot dropping is easier than pattern-matching. Our players are making mistakes spot dropping. So how can they begin to understand pattern reading?" The other line of reasoning involves the capability of high school athletes. Many critics question a players ability to see all these routes. I agree that at time it may appear like a lot, but like anything in football, it can be taught if you perfect the way you are going to teach it.

Training the Eyes

When making any type of "reads" in football, it all boils down to the eyes. There needs to be methodology to where a players eyes are supposed to be looking and how they respond to what they see. The more clear we can be with the progression of a players eyes, their ability to diagnose a situation, and trigger the appropriate response; the better we can all be at coaching defense. In the analysis below, the focus will be on underneath droppers, not the deep defenders.

Eyes in Spot Dropping


First, eyes begin on the run/pass key. The most common keys are linemen and running back. Regardless of the key, the player should be able to diagnose run/pass and then move on to the next action. If the defender reads pass, the player should open to his landmark and begin dropping. The eyes should go to the QB second to diagnose the drop type. (On sprint out flow rules usually trigger) On straight drop back plays the linebacker continues towards his landmark reading the QB back to his landmark on the "swivel". This is the basic way of spot dropping. Most coaches have tried to incorporate reads into their drops. However, this is where problems have occurred. The problem is usually a rules conflict.

This conflict stems from two primary goals of spot dropping. First, is the ability to see the QB so the defender can break on the ball. Second, is to gain depth. This is done to prevent an intermediate route from getting wide open. The philosophy is that if the player can accomplish goal #1 and goal#2 then the only open passes should be shallow routes. Shallow routes are not a big concern, because the underneath defenders will be able to see the QB release the ball. This allows the players to break forward and keep the play to a minimal gain. However it usually does not work this way.

Intermediate routes become open anyway. The defenders are so busy focusing their eyes on the landmark and QB that they don't know where the intermediate receiver is going to be. By the time they "break on the ball" they are usually out of position to make a play on it. Coaches begin adjusting their drop rules and involve pattern read concepts. They try to train their players to see these routes developing. Many times these players learn how to do this. However, the rules conflict rears its ugly head. When you begin to involve reads two things usually happen. First, the defenders do not see the QB as well and the "break on the ball" is not as good. Second, depth suffers because droppers will stop and delay more when reading routes.

This angers the traditional spot-drop coaches, because they have always emphasized breaking on the ball and gaining depth. They have the habit of emphasizing these top two goals. The main problem is there is no clear process of where a players eyes go. In traditional spot-dropping the eyes are simple: swivel from the QB to the landmark. If you begin to involve reads into this system and emphasize these two goals the same way, then conflicts will be present. Spot-dropping will become more difficult and frustrating then before. I am not saying all spot-dropping coaches go through this. I am noting this because it is a trap that is easy to fall into.

Whenever you begin integrating route-read concepts into a spot drop philosophy, players will not drop to depth as consistently nor break on the ball as quickly.


Eyes in Pattern Reading

Similarly to spot dropping, eyes begin on run/pass keys. Once reading pass, the eyes go to a completely different place than their spot-drop counter parts. The body begins dropping in a predetermined direction, but the eyes flash to a particular receiver. Depending on what that receiver does the eyes could move somewhere else and/or the direction of the drop can alter quite a bit. Players are usually given a 3/2 drop or 2/1 drop. These are forms of "Hook to Curl" and "Curl to Flat". Here is an example

A 3/2 drop is usually an inside linebacker. On pass he opens at 45* and reads #3 (usually the RB) if he releases vertical he has him man to man. This is simple, on pass look at #3 if he goes deep you run with him. If #2 blocks or releases outside, the backer expands his eyes to #2. If #2 is running vertical, the backer walls him off and gets his eyes on #1. In this step he is anticipating #1 to make an inside cut (curl or dig route). If #1 continues vertical past 15 yards his final read is the QB, his technique to break down and rob the QB's eyes. This is not an exhaustive list, just a simple example of eye progression in pattern-matching. To Recap the linebackers eyes:

3/2 Pattern-Drop Eye Progression

1. Run/Pass Key
2. #3
3. #2
4.#1
5. Rob the quarterback's eyes

This is an example of cover 3 rules. In Cover 3, it is difficult for the inside linebacker to get underneath curl routes in a spot-drop scheme. But, in pattern reading the reads take the backer to the curl, to the point that he is anticipating the route. It is easier to get coverage on the route because the backer will have his eyes on the receiver.

At first this may seem like a lot to someone unfamiliar with this type of coverage. With enough time and understanding it becomes easy to coach. The key is emphasizing the progression of the players eyes and the recognition of what to do. This only requires simple terminology and efficient drills.

In this philosophy, you don't have to talk about routes in the general sense. Terms like slant, hitch, dig, and arrow can confuse the process. You only need to talk about receivers and their movements. If a player makes a mistake on his reads, the process is simple to correct. Questions are the key. Using the example of the 3/2 drop discussed above: if a player failed to cover #1 on a curl, what was the problem. He probably never got his eyes on #1. Ask him, "what did #1 do?" He won't know. Players will gain confidence in this system, because through repetition, reading a route progression will become second nature.

One major drawback to pattern-matching is that there will be fewer interceptions. Turnovers are a big key on defense. You have to weigh it with the benefits. The increased coverage will lower receptions and scoring. As a coach you have to decide what best fits you.


Summary

As the game changes so must we. High school teams have become more effective at passing the balls. If you try to play the same old keep the ball in front of you and break on the philosophy, you are going to get exploited. Spot dropping has its merits, but when you play in a league with proficient passing teams, you are gonna have trouble. Offensive coaches have done a great job.

Pattern-matching can make a tremondous difference for your team, if you commit to installing it. High School athletes can handle it. I once worked with 8th graders in the offseason, and showed them how to read routes. After a week it became easy for them. They would play 7on7 and have the routes covered. They even would talk to eachother with the proper terminology. The 2/1 dropper would yell at the 3/2 guy and say "Why did he catch the ball? #3 released out and #2 came in at you."

If spot dropping works for you and you are having success with, then by all means commit to it. A scheme is as good as its effectiveness. As coaches it helps to understand the different things teams are trying to do. Down the road coverage will probably take another evolution, because offenses will begin adjusting to pattern matching even more at the high school level.

Tuesday, December 22, 2009

4-2-5 Split Field Coverage

I have read enough of these post and found them helpful and enjoyable. I thought I would try to contribute to the cause. Here is my first post.

You can find the TCU 1999 playbook here. There is not a whole lot of detail on the coverages but you can get a good idea for what they are trying to do. I have never visited with the coaches at TCU, only talked with others who run similar 4-2-5 defenses, so the terminology and alignments will not be exact, but within the general idea. I am going to discuss how to utilize a split safety coverage system versus spread offenses (2x2 and 3x1). These will be called out of 4-2-5 personnel. These will be different for a 4-3, because the COS is difficult.

In defense it helps to begin with the ordering of a coverage call. In this scheme the front call is irrelevant to the coverage the secondary is given. The call I will be discussing is 2-BLUE SOLO & 2-BLUE SPECIAL

The "2" Refers to the read side coverage. The read side is the side of the passing strength, and is the side that the SS and FS go to. The read side safeties will relay the coverage to the read corner and linebacker. The "BLUE" call is the away side coverage. This is the side away from the passing strength. The WS will let the away corner and linebacker know what the coverage is. The Diagram below shows it.





COVER 2

Cover 2 in this scheme is not the typical squat/halves (cloud) coverage that is quite common. Cover 2 is a robber scheme. There is a post about Virgina Tech's Robber coverage here. TCU's and Virgina Tech's are very similar.

To summarize robber. The FS will align o/s shade of the OT and 10 yards deep reading the linemen. On the snap of the ball the FS will remain flat footed until he get his read, on a run read he pursues the ball inside out. If he reads pass, his eyes flash to the #2 WR to the read side.

If #2 releases vertical past 8 yards the FS will yell "Push, "Push" and takes the WR man to man. If #2 releases out or in within 8 yards the FS will rob under #1 looking curl, post, dig.

The SS is responsible for the out cuts by #2 and if he gets a "push" call from the FS he will move to get under #1. The read corner aligns at 7-8 yards off LOS and bails playing a 1/2's technique over # 1.

BLUE


On the away side the WS and away corner are playing cover "BLUE". This is a type of combo man between the two of them. Both are reading the # 2 WR.

If the # 2 WR pushes vertical past 8 yards the WS takes him man to man and the corner locks up on #1.

If #2 releases outside within 8 yards the WS will make a "wheel" call to the corner. On a wheel call the corner Comes off and takes #2 man to man, and the WS locks up on #1 with over the top leverage.

If #2 releases inside the WS will yell "IN" "IN" to the linebacker and then double #1 with the corner.

The read and away sides respond differently to outside cuts by the #2 WR's. The picture below shows how each side will respond to the curl/flat combination.




SOLO


The final word of the call is SOLO. This is the trips coverage. This alerts the secondary that on any 3x1 formation the away side will check into SOLO.



SOLO is a trips check aimed at defending the trips side at the expense of putting the Corner on the single receiver side on an island man to man. The Read side continues to play Cover 2 on #1 and #2. The handeling of the #3 WR is done by the read side backer and WS. The WS has force/ pitch to his side. On pass, the WS sprints toward the middle of the field hunting for the # 3 WR. He has him Man to man. The read side linebacker's job is to wall #3, re-routing him and preventing a quick throw.

Versus a split play the coverage looks like this.



On the read side the FS makes a "Push" call and takes #2. The SS gets under #1, and the WS sprints across the field and takes #3. Below is another example.



This is an example where running 2-Solo is perfect. The play is designed to attack the trips side. The FS sees #2 release o/s and then robs the curl of #1. The SS drops to the flat and picks up #3, and the corner is deep to handle the wheel route by #2. If the QB is reading the corner and SS he will throw to the curl not realizing the FS is getting underneath it.


CHANGE OF STRENGTH (COS)

COS deals with motions that change the read side. This is one of the most troublesome things to deal with in this system. However, the presence of a third safety makes adjustments easier. Thats why this system is more difficult to run out of a 4-3 or 3-4. If the read side changes the FS moves to the other side, and the SS and WS swap responsibilities.




The read side flips to the right. The FS and WS play cover 2 and the SS checks his side into SOLO. After the motion the secondary is aligned like this.



The beauty of this is the adjustments were made by the secondary. The linebackers don't really have to move, only change responsibilities.

ANOTHER TRIPS COVERAGE "SPECIAL"

SOLO is designed to Load up on the trips side. You can run multiple coverages to the trips side with SOLO on the away side. You can put your read side into squat/halves, man, and BLUE. SOLO allows for flexibility in coverages to the trips side.

However, you might not always want to lock up on the single receiver side. You need a coverage call that allows for flexibility to that side too. That is where "Special" comes in. If the coverage is 2-BLUE- SPECIAL, your secondary checks into special with any 3x1 set.

Special puts the read side corner man to man on # 1. The SS and FS play #2 and #3 with BLUE coverage (Treating them like #1 and #2). The SS acts like the corner does in Blue and the FS acts like the WS. The other players disregard the #1 WR the corner has man to man. (This is an X-out concept. You could use a similar adjustment VS TE trips (trey) You can lock the SS on the TE and have the FS and corner play blue on #1 and #2.) This locks down that side and allows you to play games with your WS and away corner on the single receiver side. You have many options here. You can run different brackets, play squat/halves, Spy the QB with WS, or even send him on a blitz off the edge.



You can add a 4th tag to the call to let the WS and Corner know what to do vs trips, or have the WS look to the play caller for a call when he gets trips. It helps to have a base call for the away side in special. A simple bracket call works best for starters.

Special is also the call of choice versus an empty (3x2) set. Versus empty the FS checks Special to the trips side and the WS gets the away side into blue. This is a good coverage it provides great run support for draws and get all the WR's covered.



With 2, blue, solo, and special you can present a number of looks to the offense,have a plan to deal with the trips side and open side in 3x1 sets, and even cover empty (3x2) sets. The ability to play with 5 players in the secondary makes adjustments and communication simple.

Addition

I have written another post that goes into alignment details of split-field coverage versus 2x2, 3x1, empty backfields.