The Jacksonville Jaguars will be running a 4-3 defense for the 2013 season, but it's not the traditional 4-3 defense the team used in the past under Jack Del Rio, Mike Smith, and Mel Tucker running the defense. It's going to be a lot different going forward.
"Some of the philosophies are different and all of the language is different, so before we can even think about the philosophies, we have to be able to communicate," linebacker Russell Allen told John Oehser of Jaguars.com on Wednesday. "That's what we've been doing the first week or so, is learning all terms and naming formations so we can communicate effectively. We have to spend a ton of time getting used to all the different terms and different philosophies."
We've focused on the defense the Seattle Seahawks ran under Gus Bradley, mostly focusing on the LEO position, which is part of the big change on the defense going forward.
The defense will also move away from playing two deep safeties, which it did in the past in a Cover 2 shell, but will feature more man coverage and alternating defensive fronts with different run fits. In layman's terms, it's a 4-3 defense featuring more 3-4 run fits on the defensive line outside of the LEO position.
We'll get into more detail after the draft of some of the basic principals of the scheme the Seahawks used such as playing a lot of Cover 3 and Cover 3-man coverage and what the linebacker's responsibilities, etc.