it's kind of silly to suggest things that just won't happen. Ed Lamb will never be head coach either. Nor will Saban, or Sarkisian, or 99% of the coaches out there. Why? Because you have to be active LDS to be head coach.
And that policy is not going to change ... if anything BYU is doubling down on it as they now want employees to not only be active by temple recommend holders always.