Man....we have alot of non-Seniors in the 2 deep roster right now. I know Collins is likely gone - so Dline has to be addressed (especially DE pash rush). Oline also will need to re-load (and given Langs rotation - we don't know how good the back-ups are).
I'm counting Collins as gone, but don't forget Kevin Williams is back for another senior year, and Stoltenberg, Newell, C. Davis, and K. Davis have had a year of practice at DT. Not at all worried about DT for 2016.
DE with McMullen and Akinmoladun then Dzuris wouldn't be a bad start, but it's not enough. Need at least one, preferably two more guys including a pure speed rusher.
Agree with the OL, that we'd be better off finding a series here and there for the guys like Foster. Hard to say what we have coming back, and feels like our 2nd string could have improved more this year.
We return every single linebacker, and almost every one of the players who have taken over the starting spots in the defensive backfield. Hard not to be optimistic.
Tommy comes back for one more season, with every receiver who has double-digit catches. Not sure who the running back will be, but plenty of options.
Schedule next year is harder, but the team should be very good.