You're retarded if you think Bama defense looked garbage at any point of the Iron BowlIf Lincoln Riley is creative with this running game and doesn't go balls out air raid, I could see it.
Alabama's run defense looked like garbage in the first half of the IB, and as talented as our four RBs are, outside of Jovon, we don't have that consistent greatness of a Mixon or Perine (Roc and Barber tries their hardest though). Run some two back sets, maybe some triple option, make sure your receivers can set those outside blocks, and you got a game.