Rajon Rondo made sure that the team got a head start on bonding as a team when he called everyone together for informal workouts in L.A. Sounds like it was worthwhile for everyone.

Rookie Sullinger says the gang's all in - Boston Celtics Blog - ESPN Boston

Celtics rookie Jared Sullinger got his first real dose of live action with his veteran teammates last week in Los Angeles during a series of team scrimmages organized by Rajon Rondo. "That was fun. We had great team bonding," Sullinger said prior to taking a duck boat tour of Boston on Thursday. "Everybody went out. Everybody had fun, played ball. We never saw nobody go one-on-one. Everybody all went as a group. So, we just developed team chemistry."

After Media Day the team will fly overseas for another opportunity to grow together as a team - not unlike the experience they had in 2007-08. That season turned out pretty well if I recall.