I have been seeing all the trade ideas and there are only a few that too me have some viability.  ATL (although I don't want Trae Young back, rather have Murray and other pieces), TOR (starting with Siakam) and MIN (for Towns).  Now the idea of a CLE trade is close to viable but I don't quite see it.
I think Garland would be the main starting piece coming back for Brown and that makes sense.  Brown could play SF for them.  He would be a perfect fit.  Mitchell is the scoring guard, and they need to find a complementary PG or Combo guard.  Garland would be an OK fit on Boston, and he is a good player on a fair contract, but we need to get more back if we give up Brown.  I don't see how the rest of the trade would work.  I don't have much interest in Okoro and Osman and so on.  I don't think they would give up one of their better players (like Jarrett Allen) for Smart.  And I would still want more, even if they would.