Back on "topic" (I know). Check out my math here on possibilities as I think there are few barring something unexpected:
1. SEC champ is in (not at 1, not meant to be ranked)
2. ACC champ is in.
3. OU is in if they win.
4. Wisconsin is in if they win.
Those two "ifs" loom large, especially as Ohio State is favored. So, if OU loses, a slot opens up. If Wisconsin loses a slot opens up. The only two teams that look viable appear to me to be Bama and Ohio State.
TCU won't jump from 11th to 4th and USC won't jump from 10th to 4th, right?
The CG losers would seem to be out. Penn State is out. So, the most probable thing is an OU win and OSU win according to the betting, and that means OSU OR Alabama, which is entertaining.