I'm glad that they'll now likely finish their careers in Boston, and that we get to see them in Green the rest of this season.
I do hope, however, that they give absolutely everything they have in this year's playoffs (assuming we make the postseason) and then retire after this season. They're still good players, but they've become a bit less effective and will likely be even less so next season, and wiping their two contracts off the books after this season would give Danny a good chunk of change to work with. Next season, start Rondo (unless he's traded), Bradley, and Green, and also start Sully (unless Danny somehow acquires a legit starting PF). Also play Lee a lot, and we'll also see between now and then how Crawford and Williams fare.
And hope for the best.