I don't think Pitt is ready to move on from Ben, and they already invested a mid-round pick last year in Landry Jones.
Vikings
Oakland
Rams- Contingency plan should Bradford get hurt again or disappoint (2nd-3rd rounder)
Titans - Same situation as the Rams
Bengals - If Dalton comes up short again in playoffs (2nd-3rd rounder)
Chiefs - If somebody Reid likes falls
Arizona- Somebody to grow behind Carson
Green Bay- 4th rounder to groom behind Rodgers
I'd say all but maybe 5 teams should look into drafting a QB.