When Miami traded for Rosen, the very next step should have been to rebuild the (entire, IMO) o-line. Why? First, a strong running game would really help out a young QB, and Flores said that he wanted to be able to run the ball but Miami's o-line was woefully incompetent when it comes to run-blocking. (This was due to Philbin and Gase hating the run and preferring to use the short pass in its place.) Second, Miami should be able to go for a top-ranked QB in next year's draft, but if Rosen works out, then they can use those top picks elsewhere. BUT, how can you evaluate a young QB if you don't give him a running game or adequate pass protection?
Other teams, with the right personnel running the show, have shown that you can turn around a bad team fairly quick if you know what you're doing and find a decent QB. Building a new o-line and adding the ability to run the ball was needed for THIS season, so the team can see what they have in Rosen. Then, if he's not the one, they'll still have a good, solid foundation for the next QB. I don't believe in going 0-16 to "Tank For Tua"; I'd prefer seeing a competitive team this season which would only get better next year as the talent level on the roster is increased and the coaching staff gets more experience.