I am not sure it is possible to tell what Brown really wants, he may not even know. He is smart enough not to say out loud that he wants to be traded so he can be a #1; that would make it seem like he doesn't value winning. I also believe that he is loyal and does like being a Celtic.
And I have said all along, that at this point, I don't believe BOS is looking to trade Brown, but I think they would for the right deal. Brown has created enough chatter, I believe on purpose, so that teams will now be calling BOS and asking what is up. Maybe even MIL will call. This is not going away unless Stevens comes out and says we are absolutely not trading Brown no matter what, which he won't, as this would be silly, even Luka Doncic got traded.