A traditional organized crime family is hierarchical, with individuals serving in the roles of leader, supervisors, or workers. The more modern organized crime groups sometimes have shared leadership. They might also involve a loose confederation of groups working together to commit crimes (Osterburg & Ward, 2007, p. 617).
Reference:
Osterburg, J. W., & Ward, R.H. (2007). Criminal investigation: A method for reconstructing the past (5th ed.). Newark, NJ: Matthew Bender & Company, Inc.