The various leadership theories can be categorized into six basic approaches, many of which are applicable to leadership studies today.

The various leadership theories can be categorized into six basic approaches, many of which are applicable to leadership studies today.  Great Man Theories, Trait Theories, Behavior Theories, Contingency Theories, Influence Theories, and Relational Theories. Select two different leadership theories, briefly explain them, and evaluate their theoretical approaches to leadership effectiveness in organizations.