Managing Vision - Those who reach the highest level of management see the big picture. They envision how the company will look in the future and include others in the creation of that vision. They are Leaders. Growing businesses can succeed when management teams are successful in all Three Levels of Management. Owners can delegate to middle managers.
Middle managers act as coaches.
The team performs. Most importantly, everyone sees their place in the future of the company. Measuring management performance can be highly subjective. We must do it all the same. Self-evaluation on the Three Levels of Management may be the most important measurement of all.