I think in general signing Bradley just shows integrity by the Celtics that they are out for everyone's best interests. Especially a guy like Bradley who works hard. Too many fans are caught up in how much money these guys make, and too focused on the negative, where if teams just dumped players like a bag of chips that doesn't really show much integrity imo and isn't good for the league, the player, or the Celtics. Keeping your players and signing them is good for everyone. Obviously depends and every situation is different, but the Celtics have a lot of options even still.
Signing Bradley was a no brainer to me and not sure why fans get so caught up in stuff like that. He got market value. He might be a little overpaid because the market was where it was at, but if we are developing players, at least we have that player. The Celtics may be trying to go after cap space eventually, but in the interm I don't think you just cut bait on players.
DA has said in the past that he's dealing with players and their families and trying to do what is in everyone's best interest and that speaks for itself. That's why he's a good GM. He wouldn't be one if he didn't do that. Nor would he be a very good person either.