Im going to penalize Tim Duncan a little bit because of Gregg Popovich who Im guessing is the greatest basketball coach in the modern game and probably swung a decent amount of that team's success. I would take TD over at least 5 names mentioned in this thread but I think he's in Moses Malone territory and not 'guy Im starting with not named MJ' territory.
In my lifetime, only 2 players have won it all with a scrub team. Dirk and Olajuwon. Ill just leave this quote from MJ I got from Wikipedia:
If I had to pick a center [for an all-time best team], I would take Olajuwon. That leaves out Shaq, Patrick Ewing. It leaves out Wilt Chamberlain. It leaves out a lot of people. And the reason I would take Olajuwon is very simple: he is so versatile because of what he can give you from that position. It's not just his scoring, not just his rebounding or not just his blocked shots. People don't realize he was in the top seven in steals. He always made great decisions on the court. For all facets of the game, I have to give it to him.
—Michael Jordan[49]