We'd have wins against Utah, USC, Boise St, Tennessee, and Washington.
That would be 3 wins against teams that are currently ranked along with a couple of additional wins against P5 schools with winning records. We would be undefeated with an SOS ranked tougher than Clemson. We would be absolutely deserving of #4 in that situation, but could also see Georgia and Oklahoma being ahead of us putting us at #6. I don't reasonably see how we'd be any lower than that, though.