Just because you don't like all the ball handling he does, doesn't make it ineffective. Nor does LeBron have a great surrounding cast in my opinion, he has a bunch of role players.
Can you imagine Ray Allen or Pierce on the Cavs? *shudder*
Pierce with Shaq? I kinda think that would be awesome. I don't think anyone would want to drive on that and the Cavs would win every rebound.
I don't think Ray would be incompatible with Shaq. I think Shaq would enjoy someone stretching the floor for him.
I don't think Duncan had a great surrounding cast at any point.
I don't think Hakeem had one either. He had an old Drexler for his 2nd ring.
Duncan has played with Tony Parker, Manu Ginobili, Robert Horry, David Robinson, Stephen Jackson, Sean Elliott, etc
Olajuwon did have lesser teammates for sure. But Horry, Drexler, Cassell, Kenny Smith, Thorpe, Mario Eli, etc could ball.
Lebron James is ridiculously good. Trade him for Kobe or Pierce, and BOS or LA would become so dominant, It wouldn't be fair.
The Cavs without James, would stink it up.