BYU goes undefeated, and is 12-0. Washington and either USC or Utah are playing for the pac-12. Tennessee finishes 9 - 3.

Where does BYU fit into the postseason?

Again I know that this is incredibly unlikely especially since there's only been one time in history where they finished the season undefeated, but it's still fun to speculate.

Oh, and they were the only undefeated team in FBS.

At the very least, BYU certainly would be a bee in the bonnet of the P5.