Coffee Break Training: Medical Components of the Incident Command System: Medical Group Supervisor [open pdf - 374KB]
"Learning Objective: The student will be able to understand the Medical Group Supervisor's responsibilities. [...] The Medical Group Supervisor reports to the Medical Branch Director, Operations Section Chief, or Incident Command (depending on incident complexity and organizational structure) and supervises the Triage Unit Leader, Treatment Unit Leader, Patient Transportation Unit Leader and Medical Supply Coordinator."
Coffee Break Training - Emergency Medical Services Series No. EMS-2014-6
United States Fire Administration: http://www.usfa.fema.gov/