Looks like Monty Williams was offered the job and turned it down. It's a lengthy story but if you scroll to the end of it and you'll see he turned down the offer to become the HC @ Illini so apparently Brad received offer at Monty turned it down.
www.si.com/nba/2017/04/06/monty-williams-wife-ingrid-family-tragedy-spurs-thunder-pelicans
www.si.com/nba/2017/04/06/monty-williams-wife-ingrid-family-tragedy-spurs-thunder-pelicans
