Both Duncan and Hakeem won a ring with pretty much no help whatsoever.
Also we can see the effect some guys had by what happened to their team after they left.
Shaq leaves the Magic.....tiiiimmmmbbbeeerrr
Shaq leaves the Lakers.....hello Kobe. Welcome to the 8th seed.
Shaq leaves Miami....kersplat....oh hey. We just won the draft lottery
Shaq gets old. Leaves the Suns....way better
Shaq goes to the Cavs...they don't really get much better or worse.
Both Magic and Bird instantly made their teams into very very good teams the second they showed up.
Didn't Kareem do that too? Showed up and suddenly the Bucks had their only championship?
Lebron can make a team relevant immediately, but he can't close even though he should.
I wouldn't be complaining if he had gone to game 6 or 7 against the Magic. But he didn't. He folded
I don't understand why people are being revisionist about this. One week it's the Cavs are the best team in the game, and the next week, it's weeelllll Lebron has no supporting cast and Mike Brown is bad. Didn't the Cavs handle the Celts just fine in the regular season?
Duncan had Robinson, Ginobili, and Parker. Those guys do not count as "pretty much no help whatsoever." Let's not forget about Popovich either. I can't really speak to what kind of help Hakeem had.
Your points about Shaq aren't that effective...all you've proven is that when the best player leaves and the second guy becomes the best player on the team, it's tough for that team to succeed. Surprise? The Lakers did make it to the Finals a couple times after Shaq left and before they acquired Pau. Miami's problems post-Shaq can be traced in large part to Wade's injury problems.
So yes, Shaq + Kobe or Shaq + Wade = championship, but Kobe + nobody and Wade + nobody = decent at best. Well, there you go.