There could be quite the overhaul in Evanston at the end of the 2020 football season.

First, Northwestern athletic director Jim Phillips was named the new commissioner of the ACC. Then, later on Monday, Brandon Marcello of 247Sports reported that longtime defensive coordinator Mike Hankwitz plans to retire following the season.

“My wife and I discussed it at length. She thought it was going to happen two years in a row,” Hankwitz told 247Sports. “At some point she said, ‘You’ve gotta decide.’ We talked about it and said, yeah, you know what? I’m not getting any younger.

Hankwitz has been involved in coaching for 51 years. He’s been at Northwestern since the 2008 season and has been one of the best-kept secrets in all of college football.

This season, Hankwitz is Broyles Award nominee, presented to the best assistant coach in college football. The Wildcats own the B1G’s top scoring defense (14.6 points per game), sit No. 3 in total defense in the league (313.9 yards per game) and have forced 16 turnovers in 7 games.

Northwestern is 6-1 this season, in large part to its defensive effort. The Wildcats won their second B1G West title in three seasons and will play Ohio State in the B1G Championship Game on Saturday.