1. Who stops Joe Johnson?
Johnson is the closest thing to a superstar the Hawks have, and the ex-Celtic plays best against his former team. Johnson averaged 20 points per game in that playoff series five years ago, and he's averaged 18.9 points in 27 games against the Celtics in his career. Johnson gives Ray Allen fits, and he might be too big for Avery Bradley to handle. Bradley's defense on Johnson could be the key to the series, and the young Celtics guard is going to need plenty of team help.