But people like Avie Tevanian, Tim Cook, Bertrand Serlet, Bob Mansfield, Johnny Ive, Dan Riccio etc. all played critical roles in turning Apple around.
iPhone simply isn't a success without all of the above functioning at a high level.
But there's no doubt who was in charge and who set the direction. From everything I've read about Apple, it was Jobs who was in command, and everyone else followed.
Because it's never been the case that Steve Jobs was in charge and everyone just fell in line. It's always been consultative and has always been the leadership team making the decisions. It's in fact how most companies run.
Especially given Steve was not 100% during most of his time at Apple.