I have watched probably half a dozen of their games. BYU could stick around and beat a team like that. BYU is a good defensive team and will wear most teams down with its depth.
Where they are going to run into trouble are same type of very quick and long teams that we saw in the preseason. Defensively, they take away your space instantly and you need to be able to handle the ball strongly and pass smartly to avoid getting trapped and turn the ball over.