I'm not sure Iowa doesn't try to contain all the time? I'm also not sure AC dropped into passing lanes more than 2-3 times a game in 2010? Some of that I believe was he just dropped back, not being able to fight off the double team. I don't believe dropping back into lanes was ever part of our game plan though.
Sometimes when you're at the games, you see some things better than on tv, but you don't have the benefit of replays of every snap either.
I would say AC, understandably, was less aggressive in 2010. The example being the Wisc game, where he got chop blocked several times, once very obviously. I'm not sure I blame him, he was being doubled a lot, and chop blocks blow out knees.