Could be that she sees the writing on the wall as far as her job with the Cavs or the chances the coaching staff is retained or that she has become disenchanted with coaching pros.
https://www.espn.com/nba/story/_/id...ead-coach-stint-cleveland-cavaliers-assistant
https://www.espn.com/nba/story/_/id...ead-coach-stint-cleveland-cavaliers-assistant