Edge Model:

Included below is a model of the traits that an effective leader must exhibit in order to fully utilize the philosophy of S.I.G.M.A. leadership. In the model below you will notice a fluctuating line based off of the traits exhibited by the leader. The height of the curve represents the success seen by the leader according to the traits they exhibit. The higher the curve goes, the more effective the leadership, and vice versa. The most important point of this, however, is where the word, "Desirable", is seen. This word lies where the line just begins to bend back down at the edge of unacceptable, hence the model's name. It is within this area that a leader must strive to remain in order to maximize effectiveness whilst still maintaining a motivated, cohesive team.