It's pretty clear that they have the best player in the league at the 2, 3, and 4 spots, and that MMiller has 6th man of the year potential, but it should drop off quickly from there. Teams will have to beat them this year, and perhaps next, with superior depth. After the next two seasons of adding an MLE player each year to fill out with a solid starting center and backup C/combo guard, they'll be the favorites to take all the marbles...
That's why we should be focused on going all-in for the next two seasons while A) Miami isn't up to full strength, and B) we have KG, Ray, and JO.
That means signing both Nate and TA to 2-year deals for whatever it takes, and trying to trade Sheed's deal UP for a bench scoring machine, even if it means (gulp) paying off the last 3 years of Rip's deal (with us throwing in other good, but not starter-quality pieces). That means trying like heck to get Shaq in a backup role for the minimum (Matt Bonner is off the table). It means getting the best talent at nearly any price, so long as that price doesn't extend beyond 2-3 years.