If Michigan loses a close game at Indiana, why wouldn't the Big Ten be #1 and #2 next week with Kansas and Syracuse losing? Would Duke, after losing like it did to Miami move up to #2?! I could maybe see Florida moving up to #2 if they beat Mississippi.
But no matter who is #2, if IU beats Michigan, they pretty much have to be the new #1, setting up the possibility of a #1 IU coming to Minnesota to play.