If ‘Bama wins out, wins the SEC Championship, and one of the top 3 lose, they might leapfrog into second.
I think UGA can beat them.
If Oregon and KSU win out, there is no chance Alabama gets to to #2.
If either Oregon or KSU lose, I could easily see a one-loss SEC team getting in ahead of an undefeated Notre Dame. Notre Dame is vulnerable to teams with great speed on offense, and USC has plenty of it at the skill positions.