The only scenario I can see in this situation is as follows.
If Utah wins and Boise win out then Utah vs Boise in non championship Bowl.
If TCU wins and Boise win out then TCU vs Boise in non championship Bowl.
If Boise somehow loses to Hawaii or Nevada then Boise vs loser of TCU/Utah, while the winner of TCU/Utah somehow gets to play in a non championship bowl, but at least they will have to face a team that is not MWC or WAC.
BCS committee has every angle covered, except option 3 will have at least 1 team to face up against a formidable opponent. As much as I don't really want them to, I have to root for Boise to lose.
"If "pro" is the opposite of "con", is "progress" the opposite of "congress"? ...Gallagher