The Big XII needs to earn the 3rd seed instead of the 4th seed. Let me say that differently for you - BYU needs the 3rd seed in the playoff instead of the 4th seed. The 4th seed will have to play the 5th seed most likely. Today that would be Ohio State, but it could be Texas, Oregon, Alabama, Georgia, etc too.
It's also fairly possible that Boise State could jump into a 4th seed too.