And vice versa, IMO. Neither got it done without the other, or without Phil Jackson for that matter.
I get miffed when people contend that, since the Bulls didn't win it all after MJ left, he was the only reason they won. First, they came damn close to making the finals the year after MJ left, one controversial foul call in game 7 as I recall. But, second, if instead of just subtracting MJ you replace him with the second best player in the league at his position (which IMO was Reggie Miller at the time), that team wins another championship. MJ was a great player but the hype on him was and is way out of control.
ETA: These stories about Chris are really surprising and distressing to me. He's always been one of my favorites.