What’s the difference between a System Administrator and a Site Coordinator? April 30, 2021 19:56 System administrators oversee multiple locations for training and AEDs. They oversee a group of Site Coordinators. Site Coordinators are responsible for only a few AEDs and CPR training certifications at a given location. Related articles Who is a System Administrator? Who is a Site Coordinator? How do I register an AED in LifeShield? How do I make a change to a CPR class? Can I sign up to become a CPR trainer?