Friday, August 27, 2010

Georgia vs Louisiana Defensive Analysis: What Scheme Do The Cajuns Run?

Yesterday, we looked at the quarterback match-up between Aaron Murray and Chris Masson. If you missed it, you can find it here. Today we will take a snapshot of the Cajuns' defensive scheme and how it operates.
 
The Cajuns run a multiple 4-3 defense. It's a very physical, in-your-face, scheme that depends greatly on the intelligence and athletic ability of its linebackers. It was installed in the spring of 2004 and is currently being coached by the Cajuns defensive coordinator, Kevin Fouquier.

In this scheme, there is a big emphasis on the linebackers ability to react first and read second. If that sounds funny, it's not, anticipation is an important element to executing this scheme effectively. It's important to be quick afoot and have the ability to adjust to each play as it progresses, rather than reacting after the snap.

That said, it can be a good way to force turnovers because, if your players can adapt quickly to the snap of the ball, then they have a genuine opportunity to blow plays up, force fumbles, and foster interceptions.

The reason for this is because the plays are moving so quickly and, seemingly, with such chaos,  until the quarterback can be forced into panic mode. If he's not prepared for it, he will often forget to advance to the second or third progression in an offensive play. Often, this will lead to an ill-advised pass to a well-covered receiver.

Furthermore, from a running backs standpoint, it can be frustrating to see the lanes seal up so quickly.
So, unless a running back is able to make his cuts and create new lanes of his own, when one closes up, he could be met by a big wall of defenders—sometimes forcing a fumble in the process.

On the other hand, there are disadvantages to running this scheme as well.

For one, it allows a lot of ground yards if the linebackers cannot recover quickly from a poor read. Add to that, if the front four fails to do a good job sealing off lanes and closing gaps, it's possible to see a decent runner rattle off four-to-six yards before they are apprehended.

Furthermore, the secondary plays very conservatively in the scheme the Cajuns run, so there is little man-to-man coverage. They are constantly guarding against the big play but are vulnerable to plays underneath that can lead to easy scores or big chunks of yardage by speedy receivers.

The Cajuns have a stellar group of linebackers, a seasoned secondary, and a decent front four. They know the system and finally started making small strides in executing it last season, but there is still work to do. The key for Georgia will be to use the strength of their offensive line to keep the running lanes open.

If quarterback, Aaron Murray, can control the tempo, keep the linebackers guessing, and make smart adjustments, Georgia should be able to perform successfully against the Cajuns.
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