I'd start Ben Wallace, Sasha Pavlovic, Lebron James, Delonte West, and Maurice Williams. That lineup gives them the best chance to actually defend Orlando. Put Wallace on Howard, James on Lewis, Pavlovic on Hedo, West on Lee, and Williams on Alston. When Wallace gets tired put in Varejao, when Lewis or Hedo sits that is when Z should be on the floor for Pavlovic. Z can't defend anyone in this series and Varejao doesn't have the speed to defend Lewis or Hedo.
Offensively they need to get the other guys involved by running plays for them. Williams needs the ball in his hand more to get in a rhythm and they need to run plays for him. When Z is in the game, they need to get him the ball in the post and not at the three point line. Lebron can't do it by himself and the give the ball to Lebron and get out of the way, works fine for Lebron, but not the rest of the team.