Head performance therapist Chelsea Lane is leaving the Warriors after three seasons to take a similar position with the Atlanta Hawks, a league source confirmed Tuesday. The Athletic was first to report the news. Lane has been a key member of Golden State's staff since joining it before the 2015-16 season. The crux of her responsibilities can be distilled to three words — "maximize player availability" — toward the top of her staff bio at warriors.com. Her ability to do so was severely tested in 2017-18.