Of course Iowa can win the West. They win out, and Wisconsin loses to Ohio State, and Iowa is the likely West winner. Iowa just no longer completely controls their outcome; however, I think Wisconsin will lose to Ohio State.
So, here it is, Iowa beats Purdue and Northwestern. The same weekends, Wisconsin beats Illinois and loses to OSU. Both teams get a bye, and then they battle in Madison on November 9. A win in Madison and Iowa controls its destiny again (assuming the Gophers choke down the stretch, which isn't a stretch).
I was down, pissed that the Hawks have given away two winnable games. But, it's not over. And I'm not just being the Black Knight when I write this.