sure its better, but its still not consistently reliable, not anywhere to the extent that Kobe's is.
truth is, once again, the zone defense is going to be key for stretches throughout the game when weaker defenders are in. the Heat only really have 3 good shooters that get minutes (Bibby, Chalmers, and Miller), and usually only one of the three are in the game at a time. It could end up being a lot like when the Mavs went zone against the Thunder, only the Thunder had two guys who could both shoot and attack in Durant and Harden. Bibby, Chalmers, and Miller can shoot, but none of them can be relied on to attack and make plays the way Harden was able to.
its going to be very important that Chandler doesnt pick up a bunch of stupid fouls. if he does, Haywood better be ready to hit his FTs like he has the last few games.