Staff Sgt. Gregory Winfrey, 82nd Contracting Squadron contracting officer, talks with one of the lead contractors at Sheppard Air Force Base, Texas, July 20, 2018. Winfrey, in one day, visited three of his sites to see the progress. That means contracting officers have to be able to find, maintain and monitor multiple contracts at the same time to ensure the U.S. Air Force and the contractors mutually benefit through this mutualism. (U.S. Air Force photo by Airman 1st Class Pedro Tenorio)