USC should have beaten Michigan, but curious play calls from Lincoln Riley raise questions as to whether he can lead the Trojans to a national title.

The No. 18 Michigan Wolverines came away with an upset over the No. 11 USC Trojans in Ann Arbor, 27-24. More news: Former Alabama HC Nick Saban Throws Massive Shade at Rival SEC Program

USC showed some toughness, but the Trojans will need to play clean football the rest of the way if they hope to achieve their goals.