If you do not believe that teams, even Iowa, don't put in new wrinkles nearly every week, you obviously do not know much about football coaching. Seriously? Really? Will you please direct this question to a couple of coaches (high school level would be fine)? They game plan every week, they increase the pressure on their opponents by giving them more and more to prepare for each week, and they keep players interested by giving them new plays to run or new strategies on defense. Yeah, yeah...somebody is going to say, "...but, everyone says Iowa does the same thing every week/year." If you really believe that, you are even more naïve that I would have thought. Instead, understand that Iowa, like very other team, has an identity. No more, no less.