Different: They're faster/they can run -- Jeff Green, Courtney Lee, Avery Bradley, and Chris Wilcox are the obvious additions to Boston's fast break. But one Doc Rivers quote I loved from the press conference introducing this year's rookies concerned the slow-footed Jared Sullinger. Rivers was asked about Sullinger and the break and replied, "Jared can rebound. We need the ball to be able to run." Look for the Celtics to be off and running.