Michigan State kicked a field goal on the last play of its game on Saturday to topple the undefeated Ohio State Buckeyes - and made the College Football Playoff picture more complicated. You may have some unanswered questions: What does the upset of the Buckeyes mean for the eventual Big Ten champ's chances? Does it help or hurt Notre Dame's playoff position? And what about the Big 12? Fear not! FiveThirtyEight's college football model has some (probabilistic) answers.