Not good, because getting to the top of any enterprise is inherently competitive.

Everyone wants the job, and there's only one of them to go around.

This is the reason you see such similar personalities occupying extremely high positions in companies. You need a certain mentality and dedication to set everything to the wayside for the pursuit of climbing the corporate hierarchy.

If the odds were high that people underwent meteoric career trajectories, that would imply that our sorting mechanisms for placing people into well-matched jobs worked very poorly. In general, I think these mechanisms work pretty well, so people typically end up in gradual career trajectories they're well-suited for.

Well at the very highest it's 1/N, where N is the number of employees at the organization.

Technically non zero