I think there could be a multitude of things, but the most specific thing that I had in mind was how players break-out the rest of the season or get hurt. Hypothetical situation: Teske goes down with an injury against NW, Davis gets some serious time, he adjusts to the speed of the game and shows real promise. That would certainly be a change that happens. It is also possible that someone has a break-out last half to the B1G season that changes dynamics (like Walton did last year). I am not predicting any specific situation, but more just speaking to the fact that there is still a lot of basketball and season to be played which will have a real influence.
Edit: Also, think of how it might feel to be a freshman, begin the season by starting and now only play a few spot minutes here and there. Also, there are more 2018 kids coming in to try and steal your spot. You never know what is going on in a kids head and how he will react