It's hard to argue there isn't talent there, with newcomers Hatari Byrd, Ahmad Thomas and others looking like they'll be significant contributors in the future, but that talent is largely unproven outside of cornerback Aaron Colvin.
6. Defensive line
The only returning starter — Chuka Ndulue — moves from defensive end inside to tackle. The unit did get a boost with the addition this week of junior college signee Quincy Russell, but there is still plenty of question marks for the group that struggled to get pressure last season.