I would've taken Ray Allen back had he not left us for the Heat...
I understand wanting to cement your legacy, but he already did! Now that he joined the rival team, and that almost everyone on the Celtics hate him. I seriously doubt anyone would ever take him due to chemistry and locker room issues.
Not to mention he isn't even that good. If we really took him back it would be for the vet minimum and that's a huge IF.