Showing posts with label Brackets. Show all posts
Showing posts with label Brackets. Show all posts

Friday, January 6, 2012

Exploiting Situations: West Virginia vs Clemson



Dana Holgorsen has earned a reputation for himself by fielding offenses that light up the scoreboard and put up monster stats. He doesn't do this by playing small ball; picking up a few yards here and there. He does it by creating explosive plays. Big plays happen when the offense exploits a weakness in the defense or a defender or two blow their assignment. In the first quarter of the Orange Bowl, the West Virginia offense completed a 34 yard pass to a wide open receiver. This play is an example of how the offense can create explosive plays by exploiting a weakness in the defense.

The play that will be analyzed can be seen here:



This play was created by exploiting 4 primary factors:

1. Situation (Down and Distance)
2. Ball Position
3. Formation
4. Personnel

The first factor is probably the biggest one on a football game meta-level. The final 3 can be chunked together into one thing.

EXPLOITING THE SITUATION

In a previous post I covered down and distance strategy. The goal for the defense is to get the offense into a manageable 3rd down situation (3rd and 7 +). The way to do that is to limit gains on first down to 3 yards or less. This is why the running game is so important to the offense because it can keep the offense out of difficult third down situations.

This play occurred on first down. It is in Clemson's best interest to keep the West Virginia offense from gaining more than 3 yards. In order to do that they can't be overly worry about the big play. This does not mean you allow the big play, but that you get defensive calls in that are more aggressive towards the run. Because of this principal, Clemson would most likely be run conscious in this particular situation. "Run Conscious" meaning probably in a base front with zone coverage.

BALL POSITION, FORMATION, PERSONNEL

These next three factors work together.



Ball Position

The ball is on the hash, it is on or around the hash approximately 80% of the time. Modern defenses are even more concerned with ball position because opposing offense have become more creative in utilizing it. The hash is such a concern that many defenses will call coverage strength to the field the majority of the time. One of the few things that will keep a defense from calling its passing strength to the field is trips formations.

Formation

This brings us to our next factor. Holgorsen uses a trips formation on this play. Defending trips involves a varied plan of attack in and of itself. When you combine the formation with the ball position a very particular set of circumstances need to be considered. First, the trips are into the boundary. This is not a common occurrence for the defense. Most defensive trips schemes are built on the premise that the offense is running trips towards the field. Boundary trips is in the back of the defensive coordinators mind, but does not call for concern like field trips does.

How does boundary trips effect the defensive thought process? First there is one WR with a ton of field to work with. This makes you think twice about putting a corner one on one with him. Second there is more space to work with for outside running plays, option or stretch being the most probable in this situation. Third, the constricted area that the 3 WR's have makes many trips side passing plays not likely. Finally, the offense can still out-flank the defense albeit with less space. This is still a cause for concern, because if not properly aligned, the defense can be hit for a 5-10 yard running or passing play easily despite the lack of space.

Because of this the defense still needs to align properly to avoid getting out-flanked while being concerned (even more so) with weak-side (field side) runs or passes.

The defense has the classic trips problem, but magnified to the open side. Which side has priority? The trips or open side? One of the things some defenses factor in is the alignment of the back. However, in this particular formation this is no help, because he is aligned directly behind the QB.

Personnel

Finally the personnel is a cause for concern. In this particular play one player is the main concern. The single side WR Stedman Bailey #3 does not have the most catches on the team, however, he leads the team in yards per reception, yards receiving, and touchdown catches. It doesn't take a rocket scientist to figure out that he is doing it on big plays. Bailey's alignment is a concern as well. He is in a position to run a quick out, comeback, fade, or anything else. His alignment opens up a large range of potential routes.

Putting it Together

Factoring all things together it is probably in the defense's best interest to free the field side safety up and have him help on the run and with coverage on Bailey. Calls like Solo or Mable would not be ideal for this situation.

THE PLAY

Clemson's Defense

They opted for a basic 4-2 front alignment and the backers are not overly cheated one way or the other. This is considered typical for this formation. The secondary is showing a two shell, which could mean anything. This could be a disguise for any number of things. The alignment that stands out is the boundary side corner. He is aligned outside the #1 WR 7 yards deep. He is not likely to come down into a 1/2's concept. Plus if the corner was playing a 1/2 concept he would need the field side safety to cover #3 vertical or a backer( vs this play that would not have been a good idea either). He appears to be getting ready to bail out.

They end up playing some type of 1/4's concept to the trips side with a 1/2's concept to the open side (could be a bracket).

WEST VIRGINIA'S PLAY

It appears that the QB might have been (don't know for sure) looking towards Bailey 1st on some type of Air-Raid "Choice" concept.


Upon seeing the double coverage, the QB would work his progression back to the trips side. This is where Dana Holgerson's play call most clearly exploits the situation. If he gets Bailey one on one, then great, throw him the ball (he actually still gets behind the double team). If they double cover him, then he has a play that will exploit the likely coverages that a defense would run on first down.


If you look at the routes, this play type can be effective versus most first down defensive calls. It really hurts Clemson's quarters concept.


The H vertical route draws the Strong Safety's attention. He cannot play the post route by the Z because the H would be wide open. The corner cannot get into coverage of the H or Z because of his outside alignment. The only thing the defense could have called to be solid versus these routes is a 1/4's bails (pure zone). That is not a sound call on first down.

This play makes the corner irrelevant and forces the SS to make a decision. He chooses to cover to the H (wise choice) and allows the z to come open on the post.

The defensive coordinator had to recognize the possibility of these play types, so he must of had a plan for them. Many defense's use backers to play wall technique on the first route to work towards the middle of the field, this forces QB's to throw high balls that give DB's time to break on it.

So where were the backers?

Its was a first down situation, and the offense showed run first. The play action kept the backers from assisting in coverage. You can't blame the backers either. Its first down, Division I linebackers are taught to play run first especially in a 1st and 10 situation.

The play action draws the backers up and because of the coverage called the Z is able to get wide open. What other zone coverages could cover these routes effectively and keep the defense from covering Bailey 1 on 1? Besides pure zone quarters, none really without linebacker help

I am not gonna draw them all up, but think about it.

1/2's: Who is gonna cover the post? There is 3 vertical routes to stress the safeties.

Cover 3: The H is gonna open on the seam with no-one to jam him, unless you play a mable tech and drop the SS down. I already discussed that this is a bad idea considering the other things the offense could do in this situation.

Special: Same problems that Clemson had, the SS is in a tough situation.

CONCLUSION

This play shows how the defense can be manipulated on 1st down. Given the situation, formation, ball position, and personnel the defense will be influenced to do certain things. If the offense understands what the defense will do, then they will be able to create big play opportunity. This shows why Holgorsen has been successful


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, October 1, 2010

BRACKET COVERAGE: PART I THE BASICS

This is the first of a 3-Part series. This series is about the basics behind bracketing and the two main types that are usually employed. Part II will expand on some different variations and explain the run support principals. Finally, Part III will cover some read brackets that resemble match-up zone.

BASICS

Bracket coverage is designed to create double coverage on a single receiver. There are multiple types of brackets and various reasons to use them. The starting point for bracket coverage is to begin with its place in football.

The two main coverage families in football are zone and man. Between these two families are many voids that coaches have attempted to and are still in the process of filling. The major attempt by many coaches has been seen in the evolution of match up-zone and pattern reading. The other attempt has been bracket coverage. To better understand its place consider the pros and cons of man and zone coverage.

MAN

+Close coverage
+Disrupts timing
+eliminates throwing lanes

-Personnel mismatches
-Receivers can run off Defenders on run plays
-vulnerable to the deep ball
-Weak versus the option

ZONE

+Good for run and pass situations
+Protects against the deep ball
+Able to read the QB and break on the ball

-QB has many throwing windows
- Offenses will attack over stressed flat defenders
- You are either weak vertically or underneath.

In zone you are going to have holes in the short/intermediate or deep zones, you cannot eliminate all areas. In man you are gonna match-up problems and have trouble covering routes run away from the defenders man leverage. (ie. Inside man versus the 10 and out.) Also, a route that creates problems for both man and zone coverages is the 10-15 yard bend-in (Dig). These routes create problems that need solutions, while at the same time keeping the defense as a whole sound versus the run. Bracket coverage has the ability to defend these problem routes, eliminate mismatches, and remain sound versus the run.

The Positives to Bracket Coverage

1. Ability to double cover a good WR (eliminate mismatch)
2. Ability to leverage underneath and deep routes effectively.
3. Can involve simple and solid run support rules.

TYPES OF BRACKETS

There are two types of bracket coverage concepts:

1. Under/Over (Vertical Bracket)
2. In/Out (Horizontal Bracket)

UNDER/OVER

I have discussed examples of under and over brackets in a previous post. Essentially One person is in a trail technique covering any underneath break (inside and outside), with another person over the top providing deep support. Here a couple examples:



These are called vertical brackets Because the WR is sandwiched over and under. One man will stay low and in front while the other stays high and behind. The strength in this type of bracket is the ability to stay under any route without having to worry about getting beat deep.

IN/OUT

In/out brackets provide horizontal leverage on a WR. One defender will cover him inside and up the other will work and outside and up. This type of coverage is easy to disguise and can be employed on any receiver. To illustrate this coverage, I will use some of Nick Saban's calls for in/out coverage and some key coaching points.

If Coach Saban wants to double the #1 WR in and out with a corner and he safety he will call "CONE".


Versus a vertical route by the WR, both players essentially cover him inside and out eliminating any mismatch.


The technique of each player is crucial. If the WR runs an inside cut, the "IN" defender must play the route aggressively and take it away. In this situation the "OUT" defender would work over the top of the route and provide deep support for the "IN" defender.


If the WR breaks outside the roles would reverse. With the "OUT" defender aggressively covering the WR while the "IN" defender works to provide over the top support.


The over the top leveraging on a horizontal break is the key to allowing the other defender to play aggressive. This makes the double move routes not a concern.



In part II I will cover slot,TE, and RB brackets in addition to discussing the run play in this type of coverage.