You're absolutely right about red zone execution deciding close gams. That reminds me of our 1990 Tartans squad that lost three games by a field goal because we kept kicking in the red zone. You can't win championships like that. A good defense will only carry you so far if you're settling for three. Your new coordinator should watch some old film of our teams under Coach Rich Lackner, we just lined up and ran iso until someone stopped us. All this fancy play-calling inside the 20 is a young coach's mistake. Simplify it and let your linemen win the battle.