The Patriots may be ready to move on from Warren next year. He seems to be on the downward trend. The draft seems to be stacked at 3-4 DEs, I expect (and hope) that they focus on the trenches. A single pass rushing OLB is not going to solve the lack of pressure, the entire front seven must improve.
I remember Jimmy Johnson describing how to build a team, his approach was "Be domninant on the offensive and defensive lines and then get a franchise QB". It is easy to remember Aikman, Smith, Irvin, etc. but those Cowboys teams had one of the best offensive lines in history and a great defensive line.
3-4 DE candidates
Cameron Heyward, DE, Ohio State, 6-5 285
Adrian Clayborn, DE, Iowa, 6-3 286 <-- a little smallish (funny 286 pounds is small)
Allen Bailey, DE, Miami (Fla.) 6-4 288
Cameron Jordan, DE , California 6-4 285
Christian Ballard, DE, Iowa 6-4 298
Juniors
J.J. Watt, DE, Wisconsin, 6-6 290
Marcell Dareus, DT, Alabama, 6-3 309
Nick Fairley, DT, Auburn, 6-4 298
Jared Crick, DT, Nebraska , 6-6 285