FILE - In this Saturday, Oct. 25, 2014 file photo, Michigan defensive coordinator Greg Mattison walks the sidelines during the second half of an NCAA college football game against Michigan State in East Lansing, Mich. New Ohio State coach Ryan Day’s 10 assistant coaches will be paid a total of more than $7.4 million this year. Contracts of the assistants were released by Ohio State on Monday, March 11, 2019. Co-defensive coordinator Greg Mattison tops the list at $1.1 million.(AP Photo/Carlos Osorio, File)

FILE - In this Saturday, Oct. 25, 2014 file photo, Michigan defensive coordinator Greg Mattison walks the sidelines during the second half of an NCAA college football game against Michigan State in East Lansing, Mich. New Buckeyes coach Ryan Day swiped Mattison from Michigan. One of the most respected defensive coaches in the country, the 69-year-old Mattison now joins forces with the 40-year-old Hafley to remake a defense that was maybe the worst in school history last year. Scheme tweaks include the use of a promising defensive back Shaun Wade in a safety/linebacker hybrid role. (AP Photo/Carlos Osorio, File)