Realistically any 1-loss P4 team is a near lock. The worst a 1-loss P5 team has ever been ranked by the CFP is #7.

So if Iowa St, Kansas St, and BYU run the table with the exception of Kansas St beating Iowa St, then Kansas St beats us in the CCG, the Big 12 would have three 1-loss teams and it is likely that all 3 get into the playoff.

You could theoretically also have a 2-loss Colorado in the mix, but it seems likely they would be the only 2-loss P4 team to be left out this year in that case.