My question for Atlanta is when you play Indiana, Chicago, and NY, when the jump ball goes up, who guards Kobe, Wade, and Lebron?
If it's JJ or Hinrich, Kobe is going off 12-14 in the first quarter and likely 35+ for the game. If it's Durant playing D, I'm telling you, he will get awfully tired and it will affect his ability to then be the entire offense on the other end of the floor.
To the poster who asked why Lebron can do it and Durant cannot: From what IP said, Tony Allen, who is lockdown, will guard the primary wing for 20 minutes per game or so. Lebron will probably guard it for the other 20-24 minutes. So that's not all game. And Lebron does steroids, so he doesn't lose any energy playing defense.

OK, on a serious note, they still have Brandon Jennings who can create some offense so Lebron doesn't have to shoulder the entire offensive load like Durant will on his team.