2015 NFL Draft guard rankings: Another questionable class

South Carolina's A.J. Cann is at the top spot of another average group of interior blockers, followed by Jarvis Harrison of Texas A&M. Are we on a downturn for guards in the draft? Sure, Zack Martin has been great for the Cowboys at guard, but he was a left tackle at Notre Dame. The first college guard wasn’t taken in the draft until the 33rd pick when the Texans picked Xavier Su’a-Filo, and he ...