Sixers probably aren't doing the brown for Simmons deal now because Boston wants Maxey involved and its too much for them. The two firsts coming from Portland should make up the difference for them.
Milton, Seth, Brown, Harris, Embiid
Boston wants Maxey because they want shooting. In this deal they also have to give up Nesmith but are getting back even more shooting. I don't see Simmons being a great fit their anyway being that he's toxic and that Celtics environment has been toxic for so long for.so many reasons.
Maxey, CJ, Tatum, Horford, Timelord
Portland finally splits up CJ and Dame while getting Simmons who should be perfect a long side Dame. They also get Nesmith to hopefully one day make up for the shooting they lost in CJ.
Dame, Powell, Simmons, Roco, Nurkic