You didn't mention Cleveland, but new regimes mean new QBs. Maybe Cleveland moves up and forces a team like Arizona, Oakland, or Buffalo to look outside the draft for QB help.
I didn't mention Cleveland because Weeden showed flashes and I think they'll give him a shot with a coach that actually knows how to handle & teach QBs.
Weeden posted something like a -200 DYAR this year, and he turns 30 next season. New regime, new coach, high pick. I think it's a very strong possibility that they ditch a 30 year old bad QB with little NFL experience from a previous regime in favor of Barkley/Smith/Wilson. If they stick with Weeden for one more year, stranger things have happened, but Weeden wasn't a good QB this past season, even by rookie standards, and most of the NFL did not grade him in the first round. It would be somewhat analogous to Carolina passing on Newton in favor of Clausen just because Clausen was a high pick the year before.