The Most important thing about Grimes coming back in my opinion If True besides him being one of the top if not the best Offense line Coaches in the Country.
Is He Brings Discipline. BYU has it on The Defense side of the Ball with Hill.
But it's totally lacking or non existent on offensive side of the Ball. BYU Needs a Disciplinarian on the offensive side and Grimes is just what the doctor ordered in my view.