Sure grimes will call some weird O plays but nobody can deny every time Grimes was at BYU our O-Lines were elite level.
Plus Grimes has the huge advantage of coaching at BYU before. He knows how Tuiaki thinks and how the players play.
The plays they did were to play to every single BYU weakness. If I were an upcoming team I would look to Baylor for a game plan. Baylor played a text book game of beating BYU.