One of the most interesting and informative interviews of the entire year happens every summer at Big Ten Media Days. That's when the league's director of officiating, Bill Carollo, sits down with reporters to answer anything and everything they want to know about college football officiating.

This year, he discussed what really happens when a coach disagrees with a call on the field, the impact of gambling on officials, how a change to clock rules could impact games this fall, what they're doing about the official shortage that is already causing problems at lower levels, and... yes... his thoughts on the controversial no-call on the hit on Marvin Harrison, Jr. in the Peach Bowl.