Go out and get Dan Quinn for DC and Jess Simpson can come back as his DL coach again. That Seattle legion of boom 4-3 had some similar concepts as what Many seems to like. I dont see him giving up his scheme but if were to turn it over to a real DC, I imagine the system would have to at least align somewhat.
His defense is literally nothing like Manny’s. Dan Quinn was an NFL DL coach for Rex Ryan and worked for Saban in the same role, and then Pete Carroll. All three of those guys preach gap control, and it’s why you cannot run the ball on them at all.