The Braves' Michael Bourn shows that a baseball player with speed running the bases can give as much excitement as a football touchdown pass, a basketball fast break and the 100-meter dash. ... Bourn gives the Braves the true leadoff man they've rarely had, even in their glory years under Bobby Cox. ...With Josh Hamilton's four home runs drawing attention to one of baseball's rarest feats, it's a wonder that one of the steriod boys didn't hit five or six home runs in a game. ...The NBA keeps playing. Quick, can you name all of the teams left? Commissioner David O'Brien must be dreading an Indiana-San Antonio or Indiana-Oklahoma City final. ...I keep trying to get interested in the New York Rangers-New Jersey Devils series, but hockey ramains a tough sell on TV. ...The loss of Chris Bosh stirs panic in the Miami Heat ranks. Apparently in landing all of that talent, Pat Riley neglected to sign a backup big man.