QB- No, and Wilson would be #3 because he wouldn't have gotten the chance to show what he can do on the field last year, because Shelley'd already been in the system a year. If you go based on what knowledge we have now, he'd be the #2, but they wouldn't know that and he wouldn't have gotten the reps like Shelley did.
RB- No.
WR- No.
OL- Empey would, and they'd move Umana to G. The other two would be top backups, but wouldn't likely start.
TE- Bushman would start.
DL- Nobody.
LB- Anderson probably, but Utah only plays 2 LB most of the time, so not Kaufusi.
CB- Dayan isn't starting at CB for Utah. Maybe if he moved back to safety.
S- No.
If Dayan starts at S opposite Blackmon, then it's 2/11 on both sides.
Also, I'm curious about your last point. You think that about 1/3 of BYU's starters would start for Utah, but you still think BYU wins 27-24?