Oklahoma State is XDY Exchangeup, Oklahoma is down and Michigan and Georgia continue to battle for No. 1 in this week's USA TODAY Sports NCAA Re-Rank 1-133.

The Cowboys' rivalry win vaults them 15 spots to No. 17, one spot ahead of the Sooners. Oklahoma has now dropped two in a row to fall off the radar for the College Football Playoff and will need to win out and get some help to reach the Big 12 championship game,

Elsewhere in the Big 12, Texas moves up one spot to No. 7 and remains one ahead of Alabama thanks to the head-to-head tiebreaker. But the Crimson Tide are rolling on the heels of a 42-28 win against LSU and have turned things around after a brutal September.

The debate over which teams deserves to lead the re-rank continues to center on Michigan and Georgia. The Wolverines had no real issues with Purdue in another Big Ten blowout while the Bulldogs scored another strong win, this time against Missouri. There is an argument for both teams; for now, the Wolverines hang on at No. 1 heading into Saturday's key division game against Penn State.

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Missouri, LSU, Notre Dame, Air Force and Kansas State were the notable droppers in this week's re-rank. The Falcons suffered the steepest decline, a 15-spot drop to No. 26 after losing to Army. Notre Dame is down seven to No. 23 after falling to Clemson, which jumped 12 to No. 41 after the impressive win.