10:35pm: Sam Amick of USA Today says that "Cousins is not going to the Celtics" and that teams who have been asking about his availability continue to being rebuffed (Twitter link).
7:08pm: Alex Kennedy of HoopsWorld (via Twitter) says that while nothing is imminent, Boston is one team to keep an eye on around the trade deadline.
6:51pm: Blakely writes that although it's unlikely that Rajon Rondo, Kevin Garnett, or Paul Pierce will be moved, there has been "growing" interest in Courtney Lee, who may be expendable with the return of Avery Bradley to the Celtics' lineup. Blakely also mentions forward Brandon Bass as another player who could possibly be on the move.
6:45pm: A. Sherrod Blakely of CSNNE.com tweets that the decision to waive Joseph and Varnardo may have opened the door to what could be a blockbuster deal, according to a league source. One name that has repeatedly been mentioned in speculative trade talk has been Kings' center DeMarcus Cousins (Twitter link).
The 6'7 Joseph had been selected by Boston as the 51st pick of the 2012 NBA Draft, appearing in six games this season and averaging 1.2 PPG in 4.0 MPG. Varnado had only played in five games, averaging 1.2 PPG in 3.6 MPG.
With the roster now at 13, ESPN Boston's Chris Forsberg speculates that the Celtics could target a veteran big man and a backup ball-handling guard to fill the two newly created roster spots. Forsberg also mentions that those potential moves could depend on the big man's asking price.