Two weeks in college football can feel like an eternity. For all the stock put into preseason expectations, for all the firm belief in some teams and lack thereof in others, it's amazing how little has to happen for all those preconceptions to fall by the wayside. One performance can change everything. It can cause adjustments of expectations, for better or worse. It can spawn dreams or kill them.
It's tough to find a better example of this concept in 2015 than the Northwestern Wildcats. Prior to the season, expectations were modest. A 7-5 record was considered an optimistic prediction.