They have one of the worst rushing attacks in CFB..131 of 133. They really don't even try to run the ball they definitely don't want to run Shaduer. Running QBs have been the thing that's hurt our defense the most.
They do have one of the best passing offenses in the country at #8... but, BYU's pass defense is their strength. They are 21st in yards allowed and in the top of pass efficiency defense. They also have the 2nd most interceptions in the country.
So, BYUs defense vs a pass heavy offense and no running QB? Yes please.