Looking at the Numbers Behind the UNC QB Rotation Posted Oct 9, 2014 Questions are mounting about Larry Fedora's use of his quarterbacks. But is the quarterback rotation actually having a negative impact on the Carolina offense? The stats and data are inconclusive at best. Mitch Trubisky's back-breaking pick-six against Virginia Tech has brought the topic of the UNC quarterback rotation with Marquise Williams from the minds of fans to the lips of the local media. (Tar Heel Blog)