Horford seems like the most obvious option. He may very likely be sent to a third team with other players/picks going to NO from that team, but carrying 4 max players on our roster really isn't sustainable.
Also, I would be very surprised if Brown, Tatum, BKN pick, LAL/Sac pick all get sent out in a trade. What other team can even offer close to that? In this scenario, I guess I am assuming Brown and Tatum actually show their worth as top 3 picks and that the LAL/Sac pick lands in the top 5. I just don't know the precedent for a trade like this - it certainly isn't any of the recent trades for stars...and yes, I realize AD is just another all-star.