What about some kind of trade with Morant going to the Bucks (plus a bunch of picks), Brown going to the Grizzles, and Giannis going to the Celtics.
Morant and Jenkins were a good player-coach duo, and Morant is a buy-low candidate in the prime of his career. They also get a boatload of draft picks as with any Giannis deal and go through the process of a rebuild, rather than a quick reload/treadmill situation.
Brown would fit the Grizzles system. It's easy to imagine him fitting right into all the athletes on that team.
For the Cs, I'd love to get Edey in the deal too. Edey is a PnR big, and the Grizzles are trying to never run the PnR. I think he's a guy that could be had, and I think he'd be a monster in the playoffs on the right team. In all likelihood, Edey would be going to the Bucks in this deal though.
Biggest issues with this idea is why the Grizzles wouldn't just trade for Giannis, and whether Jenkins would want to coach Morant again. But I liked the symetry otherwise.