For me Im going with Coleman and Patmon.
Patmon I believe has starter potential and could be a very dangerous player in a Cover 2 scheme once he bulks up and gets some game experience. I can see him challenging for the #3 role next year
Coleman, I dont know if he is a starter, or a high quality starter, but he look like that can do everything asked of him at both DT positions in this scheme. Maybe not a starter, but I think he can develop into an excellent #3 DT backing up both 3 and 1 techniques and get significant rotational snaps.
A guy to watch is Chris Whaley. I think he has the potential to be an explosive 3 Technique