[Formal structures of formal organizations] never succeed in conquering the non-rational dimensions of organizational behavior. - Philip Selznick

An organization is a group of living human beings. The formal or official design for living never completely accounts for what the participants do. It is always supplemented by what is called the “informal structure,” which arises as the individual brings into play his own personality, his special problems and interests. Formal relations co-ordinate roles or specialized activities, not persons.

The relations outlined on an organization chart provide a framework within which fuller and more spontaneous human behavior takes place. The formal system may draw upon that behavior for added strength; it will in its turn be subordinated to personal and group egotism.

The term “leadership” connotes critical experience rather than routine practice.