In the wake of a tumultuous couple of weeks for Pac-12 officials, the league's coordinator of football officiating has resigned.

The Pac-12 announced Tony Corrente's resignation in a release Wednesday night, citing personal and professional reasons.

"Under Tony's leadership, our program made great strides in improving the quality, accountability and consistency," Commissioner Larry Scott said in a statement. "While it's unfortunate that Tony has decided to leave us at this time, I want to express my appreciation for his contribution, and for leaving our officiating program strong and headed in the right direction."

Pac-12 officials have come under fire the last couple of weeks following a series of high-profile, questionable calls and non-calls in several games. It spilled over last Saturday in Colorado when coach Mike MacIntyre was seen screaming at officials and following them off the field following the Buffs 36-31 loss to Oregon State. The tirade earned MacIntyre a $10,000 fine and a reprimand from the league earlier this week.

Jim Blackwood, who has more than 20 years as a college conference coordinator and a 10 years as an NFL replay official, will serve as interim coordinator for the remainder of the season. The league will conduct a search for a permanent replacement after the season.