 Following that assignment, he moved back to the NRO to serve as the Director, Imagery Systems Acquisition and Operations Directorate, from July 2003 to November 2006.Large became the second Principal Deputy Director of the National Reconnaissance Office (NRO) and Deputy Assistant to the Secretary of the Air Force (Intelligence Space Technology) on April 2, 2007.Prior to these appointments, he was the Director, Source Operations and Management Directorate at the National Geospatial Intelligence Agency (NGA).