I totally disagree. You are certainly entitled to your opinion, but a lot of our issues I have seen in the redzone have been SIM (self induced misery) Fumbled snaps, bad throws, bad hand-off exchanges. It had nothing to do with play calling and had to do with execution. Saban hammered this home in several interviews. We had many games where we screwed ourselves simply because of execution. Had nothing to with play calling.
Granted McElwain could probably do better, no doubt we could do a heck of a lot worse.