The only way to stop Dirk is to double-team him, nobody on Miami can handle that dude. Dirk's only weakness is his passing out of double teams.
On the flip side, Dallas needs to work on stopping dribble penetration. Marion is going to stay in front of LeBron and Kidd is going to stay in front of Wade. Dallas matches up pretty good with the Heat, they'll just have to stop the dribble penetration.
All Miami do is drive and kick to the open three point shooters. They run the same play over and over for LeBron. LeBron goes at the very top of the key, they bring someone over to screen the dude that's on LeBron and then he drives right.