Just looking at the roster..it looks like it's Coker, Cornwell, Morris, Bateman, and then Barnett, which is the same order they have been running in practice. By putting Coker and Cornwell on opposite teams, they can give them more reps.
I, for one, think Saban just loves screwing with the media when there is a QB opening. I'm surprised he didn't have Rex Ryan throwing passes in the rotation.
Essentially 3 of our four DL starters from our nickel package, which is really our base formation now, are out (Robinson, Allen, Anderson) as well as someone who'd be #2 (Devall). that might make our OL look better than it really is, or if our second team DL does well, could be a bad omen for the OL going forward.