The biggest question mark:
Can this team exploit obvious mismatches and players that are hot? Too many times this team makes the 'unselfish' move of moving away from a hot player. No more of that. For example, when Pierce or Garnett are in the game against the Hawks, keep running the offense through them.
And yes, Rondo again. Can he perform on the road in the playoffs. So far he is day and night, home and away.