College football Power Rankings - Dramatic Week 8 changes top 25 - ESPN

It was always going to be difficult to top the chaos of Week 7. But from the early window to a late-night battle between Big 12 heavyweights in Salt Lake City, Week 8 delivered plenty of drama.

Upsets? Week 8 had those. LaNorris Sellers and South Carolina poured cold water on Tennessee's College Football Playoff aspirations in a come-from-behind win. Texas Tech suffered the same experience in a charged visit to Cincinnati, as did USC at Wisconsin, where Lincoln Riley and the Trojans mustered just seven points coming out of a bye week.

Meanwhile, the shine of BYU's win over Notre Dame and rise to No. 2 in the AP Poll lasted all of seven days before the Cougars fell in a bizarre double-overtime road loss against a feisty UCF squad.

Narrow escapes? Look no further than Indiana surviving at the Big House, Alabama's fourth-quarter touchdowns to outlast Texas A&M and the late surge Boise State needed to avoid stumbling over Washington State in a week that saw several other Group of 6 contenders fall.

There were plenty of box-office performances too. From Arch Manning and Texas holding off a ferocious Ole Miss comeback to New Mexico prevailing over North Dakota State in a monster meeting of Group of 6 postseason hopefuls to Utah's comeback win against Houston, fireworks with conference title and playoff implications were everywhere.

If the past few weeks of college football have felt crazier than usual, it's because they have been. Per ESPN Research, there have been 11 losses by top-10 teams over the past three weeks, tied for the most in any three-week span in the regular season of the AP Poll. The last time that happened? 2007. If that's any indication, there's plenty more madness in store up ahead.

In the meantime, there's