Leaders have a unique ability to rally employees around a vision. Because their belief in the vision is so strong, employees will naturally want to follow them. Leaders also tend to be willing to take risks in pursuit of the vision.
Managers, on the other hand, are more adept at executing the vision in a very systemic way and directing employees on how to do so. They can see all of the intricate moving parts and understand how to make them harmonize. Managers are usually very risk-adverse.
– INC. Magazine.