Chicago — Michigan football coach Jim Harbaugh probably has Bill Carollo, Big Ten coordinator of football officials, on speed dial.
Harbaugh calls Carollo nearly every Monday during the season to discuss officiating calls he didn’t agree with, and the two discuss why the call was made and often Carollo finds himself agreeing with Harbaugh’s take.
“I have a really good relationship with coach Harbaugh,” Carollo said Tuesday during Big Ten media days. “I’ve had him when he was a player at Michigan as an official, so I know him on the field really well, and there’s a great respect for each other.