Only SMU and Texas A&M are between them in the rankings. Let’s assume A&M loses to TX. If Colorado or KSU beats BYU in the CCG, I think they jump Boise and Boise is out as they won’t be one of the top 4 conference champs.
And BYU should stay ahead of them with only one loss based on strength of schedule.
All that said, if we’re 12-1, we are going to the playoffs seeded ahead of Boise. CO or KSU gets in if they win the CCG and that is BYU’s only loss, and Boise in that situation likely wouldn’t get in even if they win out.