If Boston is ready to write off the season on January 15th, does that mean they might be willing to make a play for Amare. Sure his contract is huge and he has some injury concerns, but Boston pretty much has to go all in or just throw in the towel and get rid of everybody. Since NY wants to get rid of him a team could probably get some other assets as well.
Something like this would work
Green, Bass, Lee, Joseph, Wilcox
for
Amare, Shumpert, Brewer, 2013 1st, 2015 1st
With one of the extra roster spots Boston could sign K-Mart as extra insurance.
New lineup
PG - Rondo, Shumpert
SG - Bradley, Terry, Barbosa
SF - Pierce, Brewer
PF - Amare, Sullinger, Martin
C - Garnett, Collins
Clearly a big risk for the Celtics, but if Amare gets healthy, I would fee a lot better about Boston's chances of winning a title with that lineup than what they currently have. Shumpert also provides a real legit backup PG and has size to where he could play with any of the other short guards.
Joseph and Wilcox had to be included to get Shumpert back (for cap purposes). I would have preferred to keep them, but they are worth trading for Shumpert.