Pretty sure if OSU loses they will still be in. I think Oklahoma would be more fit to jump in than Utah at that point but I don't think the committee will snub the Pac-12 again if they can help it.I don't see a one-loss Ohio St. being left out in favor of a one-loss Utah or OU. OU's loss to KSU much worse than an OSU loss to Wisco in the B1G title game.
That said, I'd be shocked if Wisco wins or even keeps it within 2 scores.
One would have thought a road win over a top-25 rival would have let Oklahoma jump Utah given they beat a mediocre Colorado team at home. To me, that clears up who they will pick in the above scenario.