They just need to go back to the BCS to pick the 24 teams.
Iowa wants as much chaos as possible in the Big 12 - BYU, Houston, and Texas Tech all dropping one more.
As painful and unlikely as it is - should also be cheering for Nebrantska in the next two, and Illinois upsetting UCLA would be a good thing. Want Wisconsin to win out as well.
That would be the path where a 10-2 Iowa would undeniably get in the playoff.
Additionally, there are some crazy ass scenarios that can play out in the B10, you could have a 7 way tie for CCG:
UCLA loses to Illinois & USC (not completely crazy) - 10-2 final record.
Indiana loses to USC, then wins out. 10-2 final record.
Oregon Wins out. 9-3 final record, but 7-2 B10 record..
Ohio State wins out, so it's 9-3, but 7-2 B10 record.
USC wins out - it's 10-2.
Wisconsin wins out, its 9-3, but 7-2 B10 record.
Iowa wins out, 10-2, 7-2.
That would leave you with UCLA/Indiana/Oregon/Iowa/USC/Ohio State/Wisconsin all at 7-2 in the B10....Not a great chance of it playing out that way, but would be nuts if it did.