The Celtics now have only 12 players on the roster who are capable of playing. One of them appears to be spending the season in the D-league. So that leaves 11.
At least until some trades are made, it would seem to make sense to call up a point guard and a center to fill out the last two roster spots (on 10 day contracts).
Here are some possible names:
Fab Melo (if team decides he would benefit from playing real NBA minutes)
Point Guard -
Shelvin Mack (once he's done playing for the Sixers)
Calling up some of these guys makes more sense than signing some vets that aren't playing, or that get waived by their team. Nobody is coming here to chase a ring anymore, and we should be looking for guys who can possibly be worth a look in summer league and into next season. In that sense it's too bad Dionte Christmas is playing overseas.