The Bulls literally stopped winning championships as soon as Jordan retired and then won 3 straight as soon as he came back. (please don't be silly and count '95 as him being back) As for signing another star player and winning more rings without Jordan, why didn't they? That team was falling apart when MJ came out of retirement. Look, I regard Brady as the best QB in pro football history. Hands down. But one of the things that made Jordan unique was that he could dominate you on both sides of the ball. He was the shut down defense guy. To even suggest the Bulls could have simply signed a FA to replace his production at the height of his prime is silly. Which brings up another issue with the Jordan comparisons... dude retired right smack in the middle of his prime years. Came back and his first full season back, he sets the then all-time record for regular season NBA wins and wins the next 3 Finals. To quit your craft like that and come back better than you were when you left is no minor feat in of itself. Muhammad Ali-esque. As a professional athlete, nobody could dominate you at all phases of the game like Michael Jordan could.