[Arkavian]

As others have said if you are very successful, the coaches tend to leave every season. The only exception is sometimes you will get an older coach who was let go that joins your staff and stays on until they retire.



For instance, during my current dynasty, in year 10, Willie Taggart was hired as my OC. He stayed as the OC for 5 seasons straight and then retired.

Same thing happened with a randomly generated DC later in my longest played dynasty, I picked up a maxed out CPU Generated DC who retired after 3 seasons of coaching as my defensive coordinator.