I'm not sure why any team would want him. There are certain players who are so good that you live with their unprofessional antics (Anthony Davis, Harden, Jimmy Butler, etc.). But Simmons is not that guy. If I'm a GM, I'm not even considering trading for a guy who is a tall version of Rajon Rondo.
https://twitter.com/wojespn/status/1440340920805691393