Michigan head coach Jim Harbaugh reacts on the sideline during the second half of the Big Ten championship NCAA college football game against Iowa, Saturday, Dec. 4, 2021, in Indianapolis. Michigan won 42-3. (AP Photo/Darron Cummings)

FILE - Detroit Lions receiver Ron Bellamy (16) pulls in a touchdown pass while defended by Cincinnati Bengals cornerback T.J. Wright in the third quarter of their preseason football game at Ford Field in Detroit, Thursday, Aug. 9, 2007. Bellamy now coaches safeties at his alma mater, Michigan. Michigan will play Georgia in the Orange Bowl on Friday, Dec. 31, 2021, as part of the College Football Playoff. (AP Photo/Carlos Osorio, File)

FILE - Detroit Lions offensive coordinator Mike Martz instructs Ron Bellamy during passing drills at the morning session of two-a-day practices at the Lions' NFL football training facility in Allen Park, Mich., on Sunday, July 29, 2007. Bellamy now coaches safeties at his alma mater, Michigan. Michigan will play Georgia in the Orange Bowl on Friday, Dec. 31, 2021, as part of the College Football Playoff. (Kirthmon F. Dozier/Detroit Free Press via AP, File)

FILE - Michigan defensive coordinator Mike Macdonald watches against Northern Illinois in the first half of an NCAA college football game in Ann Arbor, Mich., Saturday, Sept. 18, 2021. Michigan head football coach Jim Harbaugh leaned on advice from his brother, Baltimore Ravens coach Jim Harbaugh, when he hired Mike Macdonald to be the Wolverines’ defensive coordinator. (AP Photo/Paul Sancya, File)