Of all the former Celtics that are on an NBA roster, I'd only want Perk, TA and Gerald Green on this team. Wishing the best to E'Twaun (and also JaJuan who will be in the D-League), Quisy, Sasha, Delonte, Big Baby, Steamboat and Hollins and even Sheed with the knucklebockers. That guy on Miami, good luck in his personal life, but lots of bad play with the Heatles.
Perk and TA could start right now for the C's, and they do well for their teams, so it's not very likely to watch them in Green for the near future. Gerald is doing fine, he could be a good 2-guard from the bench if he was able to develop his defensive game. The rest... I don't see them helping a lot.