Celtics trade Jaylen Brown to 76ers for Paul George and two first-round picks

Someone explain to me how Jaylen Brown for Paul George and 1 (maybe 2) first-round picks is the best deal the Celtics could get? When I saw the report I just assumed it was from a fake Shams account who didn't even do a decent job making the deal look remotely believable. But no it's real. So Jaylen Brown for a different large contract and one (maybe two) first-round picks that will likely be crappy because a Maxey/VJ/Jaylen/Embiid team is very talented? Make it make sense?

If Portland offered Sharpe, Scoot, and four FRP's (valuable Milwaukee ones at that) and Brad turned that down so Blazers traded for Morant instead and Stevens had to settle for this garbage return, he has a ton of explaining to do.