That's already been touched on by myself and others, in this thread and previously.
We don't have Lebron. You can get away with it with Lebron. Name another team which has won following this blueprint, sans Lebron.
Pointing out a single exception with the best player of his generation does not make it a strategy worth following. Bill Gates dropped out of college and became a billionaire. He's an exception. It doesn't mean everyone else should drop out of school and follow his lead. It's an exception for a reason and an exception which only applies if you actually have Lebron.
Look past Lebron at other recent champions in the LAL, Celtics, Spurs, Pistons, Bulls, Mavs, Knicks(going back to the late 90's here) or teams which came close in the Jazz or Thunder, or a team which looks very good right now and a true contender in the Pacers and the picture gets much clearer. Even in our golden era when we'd run & gun, we were full sized with an MVP candidate PF, a full sized center in Vlade, a 6'10" Peja, Doug an All-NBA defender, full-sized Hedo off the bench, guys like Pollard, Funderburke and Clark also off the bench. And we ran less than we did in the JWill days.
There is no GS, Nuggets or Suns there for a reason. Everyone confronts this issue sooner or later.