Heading into Week 6 of the college football season, we've yet to see too many upsets come from the nation's top five teams. Although the order has changed somewhat, Alabama, Georgia, Ohio State, Clemson and Michigan have remained perfect through five weeks.
Meanwhile, we've seen a few challengers emerge in teams that could create some chaos later in the year. In the SEC, Ole Miss, Kentucky and Tennessee look like they could be legitimate challengers to Alabama and Georgia. Lincoln Riley's undefeated USC team looks like the Pac-12's best chance for a playoff team. Penn State looks like one of the only possible challengers to Ohio State in the Big Ten.