Absolutely no need to keep the Boston 2018 pick. Deep drafts don't mean you will find a good player at pick 27-30. It just means there's an oh so slightly larger chance you might find someone who could actually get some rotational minutes sometime during his four year guaranteed deal. I mean lets take a look at all the picks the Cs have had in the 20s recently
Ante Zizic
RJ Hunter
Jared Sullinger
Fab Melo
JaJuan Johnson
JR Giddens
With youth like Smart, Rozier, Brown, Theis, Tatum and Ojeleye already in the rotation and Yabusele, Nader, Allen and Bird in the pipeline, the Celtics do not need more youth. They need the quality and experience a veteran role player can bring by trading that pick. And if Danny feels adding an Evans and Monroe gives them a shot at a title this year, you trade that pick without even thinking about getting creative and jeopardizing the deal