Broncos back end will depend on how DRC plays. We got nothing for Porter last yr when we thought he could start. Bailey can still play but not what he once was. Still good enough to start on any team though IMO. So we could have 2 solid corners, a decent 3rd corner in Harris and a not total crap one in Carter. Not sure Broncos weaker then other teams in the AFC. I'd say they have a chance to be way above average on the back end. Still they need safety that can play a lot downs. They don't have enough there right now.
I'd guess Broncos will be bringing in a lot of defenders in the draft. Hopefully they find a starter or two which is a good possibilty because our GM kicks ass.