I really like this idea about management, transcribed from a 1986 speech by Richard Hamming:
When your vision of what you want to do is what you can do single-handedly, then you should pursue it. The day your vision, what you think needs to be done, is bigger than what you can do single-handedly, then you have to move toward management. And the bigger the vision is, the farther in management you have to go.
The bigger your vision is, the bigger the ship that you need to steer to get to that ultimate goal. Just this idea alone can tell you where you need to go in your career and whether you’re on that path.
It can also be a criticism of leaders that have no vision. Why are managers in their current positions if they have no vision of where to go?