Leadership is a broader process than management. Management is a special kind of leadership in which the achievement of organizational goals is most important. According to an article by W.H. Weiss, in order to lead effectively and dynamically you must posses three competencies. First, the skill of diagnosing, this is being able to understand the situation you are trying to influence. Second is the skill of adapting, being able to adjust or fit your behavior and your other resources to meet the contingencies of the situation.
Successful supervisors display a desire to be in charge and to make things happen.
In some situations, this drive for power is harmonized with the needs of the members of the group and is directed toward the attainment of group goals. These supervisors also find that working with their employees can be more satisfying and productive than trying to work over or around them. Successful supervisors display more self-confidence and seem to be able to reach decisions easier. Now, as perhaps never before, there is a growing awareness that the success and profitability of organizations are directly dependent on the effective use of human resources. The real test of your ability as a leader and supervisor is how skilled you are in establishing and maintaining human organizations.