It took eight weeks for the Big Ten to get its first big shakeup of the season.

That came in Happy Valley on Saturday night, when Penn State rallied from a 14-point deficit by scoring 17 unanswered in the fourth quarter to beat Ohio State 24-21. The stunning upset put Michigan in the driver's seat for the East Division title, but key matchups down the stretch could drastically change the current pecking order.

Early in the West Division, it looked like Wisconsin would coast its way to Indianapolis for the Big Ten title game, but the emergence of Nebraska and the recovery of Iowa and Northwestern make for a potentially wild finish.

How will the division races change in a vitally importa...

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