Shawn Marion has really blossomed in a starting role for the Mavericks after the team lost Caron Butler for the season due to a gruesome knee injury.
Since the postseason has gotten underway, Marion is averaging 11.2 points, 6.3 rebounds, 2.1 assists, 1.1 steals and 1.0 blocks, and although those numbers might not be all that impressive on the surface, his ability to do multiple things for his team has really aided them along the way.
For Miami, and really for the entire NBA, LeBron has been the story of the playoffs. After all of his critics continually chose to deride him for "The Decision" and his inability to win, James has effectively silenced them with one brilliant performance after another.
King James is averaging 26.0 points, 8.9 rebounds, 5.5 assists, 1.7 steals and 1.5 blocks per game, so it really doesn't even matter what type of defense Dallas attempts to play on him, because there's nothing that's going to slow him down at this point.