And that is that for the Celtics.
Seriously, why would they make that trade? Brown is, arguably, the best player on the team (and until Tatum fully recovers, there is no argument). The only reason to dump him for picks is if the team is going for a radical rebuild, except they signed Robinson to a fairly big deal.
I assume the owners do not want to pay for two max contracts. If they don't want to pay, they are not going to be able to seriously compete.
Or maybe Brown told the team he wanted out and this is the best offer they could find.