Vad was a RS -soph last year and he had played in 12 games the previous year, if he hasn't learned to play the game after all that experience, then he simply is not as good as we thought he was.
Manziel, Mariotta, and Winston made huge impacts as Rs-Fr. having played in zero games the year before they started, VL played in 12 games the year before he took over as a starter, VL has no more excuses, and our HC has no more excuses.
The next question that needs to be asked is if our HC can develop QBs to play at a high level vs. BCS teams.