Karl Dunbar, Jets new defensive line coach, is a major player in teaching the new scheme for obvious reasons, and as JETSerious pointed out, is teaching up his line constantly. The emphasis as far as the pass rush is concerned, has been better use of the hands and body to get leverage on the offensive linemen, instead of just going through them.
Dunbar has emphasized converting from playing against the run to playing against the pass after the snap.
In other words, the defensive linemen will typically play the run first (depending on down and distance, of course) and make the appropriate adjustments if they recognize pass.
Another exciting element to Mike Pettine and coach Ryan will be the ability to use the “46” defense a lot. The active defensive linemen along with their great corners, gives them the flexibility to use the scheme. We have talked about it before, but to recap, it’s an aggressive defense that gives the offense 5 pass rushers to deal with, and the Jets plan to use it in all types of situations, no matter what the offense does.