2018, that year Clemson beat the shit out of Bama:
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8 UCF
9 Washington..........winner plays 1 Alabama
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5 Georgia
12 Penn St..............winner plays 4 OU
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6 Ohio St
11 LSU...................winner plays 3 Notre Dame
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7 Michigan
10 Florida................winner plays 2 Clemson
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Guys, this is built FOR rematches, as-is. Michigan is in, as the 7 seed. Guess what? This playoff has 4 teams it played (3, not counting Florida in the bowl). If they somehow beat Clemson, they're virtually guaranteed a rematch in the semifinal.
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Penn State finished 3rd in its division. Yeah, they deserve a shot at the national title. Why not? (and the SEC will get 4 teams in nearly every year, sometimes 5, btw.