That's another thing. There was absolutely no indication that Brown was going to anywhere before 6. Could he have not traded down even a little while picking up assets? Also, why not grab Chriss from the Kings, too? They got him for peanuts, and we were supposedly really high on him, too.
It just seemed that there were several options that he didn't take that he could have.
No indication from where? Most all of these media reports (reputable sources like Woj and Stein) are leaks that NBA front offices purposefully put out there. It's intentional misinformation.
Compare most mock drafts to what actually transpired and there's a lot of variance.
Jaylen Brown came back for a 2nd workout just days prior to the draft . That was a clear sign that the Celtics were seriously interested. No problem if you don't care for Brown as the pick, but you can't bury Ainge for not potentially moving down. We just don't have reliable information in front of us to say what was available and whether he chose the right/wrong option.
My take is they likely tried to swing a deal for Butler and it fell through because the asking price was prohibitive. They probably also considered drafting Dunn (for the purpose of a trade to the Bulls or Sixers) but were unable to agree on a deal. All of that is based on leaks and could be entirely wrong. It's speculation.