Unless BYU is a 1 loss conference champ loser, I don't see a path to an at large at this point for the B12 to grab an at large. To boot, there probably are actually only 2 scenarios that the Big 12 gets a top 4 seed, one being BYU winning the conf with 0 or 1 loss and the other is ISU running the table. ISU and KSU losing last week pretty much killed any hope other than BYU in that scenario. Obviously changes with a Boise loss, but the difference between Boise and the rest of that conference is pretty big