As this week's Eliminator notes, only 15 teams from Power 5 conferences have unblemished records after five weeks. It has been a very unpredictable 2015 college football campaign.
Week 6 is sure to provide more unexpected moments, but this week's "Don't Be Surprised If..." series will concentrate on a couple of powerhouse running backs who may take their already dominant rushing totals into another stratosphere.
Unless otherwise specified, the metrics referenced below are from games against Power 5 opponents (plus Notre Dame), and the rankings indicate placement among the 65 Power 5 teams.