BYU loses by double digits to LSU and by less than a TD to Wisconsin and Mississippi State. Wisconsin wins their division in the Big 10 and plays in a NY6 game again. LSU finishes 9-3 and plays on New Years. Mississippi State finishes 7-5.
BYU beats Utah & Boise State who both make bowl games. BYU wins their other 8 non-P5 games by double digits (none of these teams make a bowl game).
BYU wins their non-NY6 bowl game (Frisco Bowl vs Houston) and finishes the season ranked.
You have the option to guarantee this result or let it ride and hope for something better.
Personally I believe the above season would be BYU's best since at least 2009. A 12-2 record would be amazing but if I could guarantee the above I'd take it in a heart beat.