Although the Celtics currently rank fifth in the Eastern Conference standings, there still are plenty of reasons to believe Boston can go on a run and reach the NBA Finals. Just ask Stephen A. Smith, who explained Friday on ESPN’s “First Take” why he’s not “jumping ship” on the Celtics despite their up-and-down season. “Milwaukee is not the team to beat in the East; they’re one of them,” Smith said. “But Boston is right there as well. I’m not jumping ship on the Celtics.” The C’s suffered a 98-97 loss to the Bucks on Thursday night, but Smith is convinced Boston could beat Milwaukee in the postseason if given the opportu... NESN.com