The actual 2 gap defense is very effective IF you have the stud D linemen to run it, which we don't. I love the concept of it and is effective in keeping linebackers more freed up to rome. However, based on the effectiveness I've seen from the D line a 1 gap may be what we need to try, I dunno. There are some variations that can be run with a combo of both based on strength calls etc. Unfortunately those can be very difficult to learn and remember which MAY also be a problem we're having. I know some of the linebackers are struggling to learn the defensive schemes and in particular that's why one of them has been moved several times between backer and D end. He's not the only one that's struggled with the schemes. Don't get me wrong, the schemes the Pelinis have put together are very good, I'm just not sure we have the players to run them mentally or physically. But, like I said, I don't know all their schemes so it's hard to point at just one thing or a player or two and decide the problem. The problem with a 4-3 1 gap defense is that the normal alignment we see nowadays with 1 TE presents 7 gaps. You have 7 players to fill those gaps and 1 missed assignment and the play is busted or if players aren't disciplined and try to cover someone elses gap. Good offensive coordinators will find the weak players and scheme to either attack them or overload them so other defenders will have to help them therefore evacuating their gap. It starts in the middle and we just simply lack stud D line right now and that makes the difference.