If Tua doesn't enter the draft, Rosen will likely be the most talented passer of the rest of the guys remaining.
Its not to say "don't address" the QB or he will be the most successful of these QBs . . . but people dismissing the talent or the fact that he is on the roster may be surprised when he comes out next year, a full year in the system with this qualified staff, and looks like the guy that made him a top 10 pick.
So nice having him here on the team and learning behind this staff and a QB like Fitz.