is to play tough, physical, in-your-face defense and BYU will wilt and/or make enough mistakes to turn the tide in your favor.
Obviously, most teams can't do those things to the level that Houston can, but still, BYU hasn't yet shown the ability to deal with the physicality that teams like Houston bring.
BYU needs to learn how to be the aggressor instead of the team being the victim of aggression.