"Delegation of responsibilities is a primary leadership tool; a process that allows supervisors to share some of their assigned responsibilities with subordinates, thereby gaining valuable time for completing other assignments. We continually use delegation at emergency scenes where a command task is assumed by the first arriving officer. The concept used routinely at emergency incidents is often forgotten in nonemergency situations. Delegation of responsibilities has the same degree of value if used properly."
Coffee Break Training - Management Science Program Series No. MS-2011-2
United States Fire Administration: http://www.usfa.fema.gov/