Cam Ward might be a franchise QB, but he'd have a weak line and no legit #1 WR. We'd be better off going the Houston route to build the lines first m, get the weapons, then get the QB.
I disagree if you think he is the real deal take him. Carr is still likely to be here for another year and maybe even two. Let your rookie sit behind him for a couple of year while you get under the cap and work on the oline.