I guess I was talking about the west, since you were touting 6 of the west teams had great run defenses. I left out minnesota, good catch there, but when you are going up against northwestern, Purdue, Illinois (even at 56th), there are some weak rushing offenses that teams can pad their stats against. Not saying it’s exclusively because the west sucks, but it certainly contributes to good defensive statistics.
You may be right, the rush defenses in the west are just that good. But there are some crappy offenses in the B1G west…