I wouldn't mind Melo, but the trade proposed in this thread is no where near enough for NY to trade him. Smart and multiple 1st round picks would have to be included.
Something like this makes a bit of sense.
Smart, Bradley, Sullinger, Jerekbo, DAL 1st, 2016 BOS 1st, 2018 BOS 1st (lottery protected)
for
Anthony
Would leave Boston's lineup as
PG - Thomas
SG - Turner
SF - Anthony
PF - Johnson
C - Lee
with Zeller, Olynyk, Crowder, Young, and Rozier as main rotation and Hunter, Pressey, Mickey, Datome, and Thornton rounding out roster.
Probably not a title team, but certainly a lot closer and likely just one move away from being a real contender.