If Danny is trying to get a quick turnaround, the player I want from the Knicks that is attainable is Tyson Chandler.
Here's the scenario.
New York has a new guy running the place and no first round picks. They may not even retain Melo. So perhaps they go for a rebuild and clearing salary would be important as would tanking for one year to maximize their 2015 first round pick.
So the Celtics trade the 17th pick and the non-guaranteed contracts(of Bogans, Pressey, Babb, and Johnson) and Bass to New York for Tyson Chandler. Chandler is only 31. If the C's end up with a top 2 pick and get Parker or Wiggins, this makes all the sense in the world for trying to build fast.