Michigan athletic director Dave Brandon is resigning and will not return next school year, a source told ESPN's Brett McMurphy.
The university will hold a news conference Friday at 1:30 p.m. ET.
Brandon has been at the center of controversy all season, including the football program's mishandling of quarterback Shane Morris' head injury and issues with students' ticket prices.
Earlier this week, mgoblog.com posted caustic and condescending emails that fans wrote to Brandon with their concerns about the athletic department. The website reviewed email exchanges between Brandon and several different fans in which he allegedly told one to "quit drinking and go to bed" and another to "find a new team to support."
Reached for comment, a Michigan spokesman told ESPN.com the school had "nothing else to add."
Students were upset when Brandon, a former Michigan football player who is in his fifth year as AD, reworked the seating arrangements for football games without consulting them and raised season ticket prices for students to the highest in the Big Ten -- an issue he recently attempted to fix by dramatically dropping the price and promising to be more connected to the student body.
Despite the change, the Michigan Daily reported that students still plan to distribute 2,000 "#FireDaveBrandon" T-shirts for Saturday's homecoming game against Indiana.
The Michigan football program has floundered under coach Brady Hoke this season, his third in Ann Arbor. The Wolverines are 3-5 overall (1-3 Big Ten) after last weekend's 35-11 loss to Michigan State, their sixth loss in seven seasons versus their rival. Hoke, who was Michigan's defensive line coach in the late 1990s, is 29-17 as coach.