Amir certainly seems like a good fit, so I guess you have to ask, can Mickey become a better version of what Amir Johnson is now?
Get a guy with a similar skillset to Amir but maybe better quickness, athleticism, and overall scoring ability, and you might really have something.
Similarly, I look at the success of Jerebko and Olynyk together and I wonder who could the Celts get who is a better version of Jerebko. Maybe that's Ben Simmons. We can dream.