...that for his plan to be in the National Championship hunt to work, BYU would have to have back-to-back undefeated seasons.
Most people agree with him, so he's done a fair job of setting up appropriate expectations. (Please note - I'm not saying he has done well to set up expectations of going undefeated. I'm saying that he's done well to set up the expectation that BYU will be left out of national championship talk this year if they do - and would need to repeat the feat next year for that discussion to become serious.)
As luck would have it, next year's schedule should be pretty good. Of course, there are a LOT of games to be played between now and then. So I just plan to enjoy each of them as they come and worry about all those other ramifications later.