Not sure if Phoenix would like this package better then what is being thrown around, but this all works and it would be an interesting option

BOS trades R. Allen, Big Baby
BOS receives Amare, J. Jeffries

NY trades J. Jeffries, A. Harrington
NY receives R. Allen

PHO trades Amare
PHO receives A. Harrington, Big Baby

Obviously lesser pieces and draft picks could be added to whomever.  This gets NY out of Jeffries contract and even more cap room next summer and Allen is marketable enough player for them down the stretch.  Phoenix gets a solid young PF on a reasonable contract and an expiring contract in a versatile player that they can let walk or re-sign if they want.  Boston obviously does this to get Amare and make a title run this year.