Looks like Jeff Green is coming back on a short term deal.
I would have to imagine that it is the qualifying offer, which means he'll be an unrestricted free agent next year. Of course, if the team is impressed with him and has the cap space, they can always re-sign him next year (a players' current team can offer one year more than other teams). But this way they have the flexibility to clear cap space for free agents in the summer.
Other notes from Doc's media session:
As noted below, the Celtics agreed to a vet min. deal with Chris Wilcox. The Celtics still have the $3M exception to use if they wish. Brandon Bass can play center in some lineups but I'd like to see some taller guys (other than the camp fodder guys like Sweetney) brought in.
So the Celtics roster stands as follows:
Starters: Rajon Rondo, Ray Allen, Paul Pierce, Kevin Garnett, Jermaine O'Neal
Reserves: Avery Bradley, Kenyon Dooling, Marquis Daniels, E'Twaun Moore, Jeff Green, Brandon Bass, Chris Wilcox
Rookies to be signed: JaJuan Johnson (likely signed tomorrow), Gilbert Brown (maybe)
More details as they become available.