2. Incident Commander
Incident Commander is position which is always staffed in ICS applications.
Explanation:
The Incident Commander is the only position that always is always staffed in ICS applications. At events and small events, one person, the Event Manager, can perform all five administrative tasks.
The Incident Command System (ICS) is a standardized way of ordering, controlling, and coordinating an emergency response that provides a common management category where multi-sector responders can work.