An interesting bit of news accompanied the announcement of Todd Grantham as Mississippi State’s new defensive coordinator: Peter Sirmon is replacing Grantham at Louisville.

While there are no trades in college football, the Bulldogs and Cardinals have swapped defensive coordinators with their new hires. After one season in Starkville, Sirmon is off to Louisville. According to Football Scoop, an agreement has been in place between Sirmon and Louisville for sometime, but the school was waiting to make the announcement until Grantham found new employment. Ironically, that source of employment turned out to be filling the opening left by Sirmon at MSU.

Sirmon joined the Bulldogs roughly one year ago to the day. He came to Mississippi State as the replacement for former defensive coordinator Manny Diaz after five seasons of coaching linebackers at Tennessee (2011), Washington (2012-13) and USC (2014-15).

MSU ranked No. 110 in total defense, No. 93 in scoring defense, No. 70 in rushing defense and No. 120 in passing defense under Sirmon last season.