We didn’t make it through two full weeks of September before the Big Ten fired its first coach. Despite Scott Frost’s canning, Nebraska hasn’t even been the biggest mover — in either direction — on Bill Connelly’s SP+ rankings in the conference. With that much going on, it’s time to survey the league and what’s changed from the preseason.

INCHING CLOSER TO OHIO STATE AND MORE SP+ TAKEAWAYS
The week 2 SP+ rankings are out. We’ve had just enough of a season to get a few big movers. What may …