Only in retrospect.
It is not the management style per say, but that great leaders have passion, belief in themselves, drive, sometimes unable to listen to others and vision. You can try to emulate all of them, but the last. This is only proven in retrospect. Jobs and I guess Whitman (don't know much about her) have vision. A person with all the other characteristic could just drive an enterprise into ruin. CEO's who belief your rhetoric could be fooling themselves. 90% of CEO's will never be people of vision. That is a rare trait. Most CEO's should be trying to make the Enterprise better. And try to recognize those with vision and use them.