Winner. I actually tried to write something similar yesterday but abandoned it at 8,500 words of woodbuckian denseness.
Though I don't think its the cerebral approach itself that is the limiting factor. Rather, like you need a nutrition science consultant to keep players up to the speed of the practices (same with strength and conditioning guys), you need D coaches who can create drills and team periods that will produce good defense under the regime as enacted by the HC. There is a lot of old school on the D side of the ball.