if UNC wins, Ohio State is going to the Playoff.
Write it down.
Clemson will automatically be devalued with the loss, which will simultaneously devalue UNC. The ACC doesn't have any clout with the committee. USC is going to beat Stanford (remember Stanford beat them earlier this year; beating any team twice in same year is tough). The loser of the B10 game (which will be Iowa) will be bounced by virtue of late loss. That leaves the committee to pick between Ohio State, UNC, Notre Dame, And Clemson for last spot. Ohio State will get the nod if it comes down to them.
Write all that down too