Coach Les Miles has made the first major coaching shakeup of his Kansas tenure.

On Sunday afternoon, Miles fired offensive coordinator Les Koenning and promoted analyst Brent Dearmon into the role. This comes as KU enters its bye week, and also following the Jayhawks’ 45-20 home loss to Oklahoma on Saturday.

“This was a difficult decision, but it is in the best interest of our football program both now and in the future,” Miles said in a release. “There is still a lot of football left to play this season and I want to put our players in the best position to be successful, which is why I am making the change now.”

Let’s start with Dearmon here. Hired in the offseason as a senior KU football analyst, Dearmon has been considered an expert in run-pass option (RPO), even writing numerous books on the topic.