Staff Sgt. Gregory Winfrey, 82nd Contracting Squadron contracting officer, talks to one of the lead contractors at Sheppard Air Force Base, Texas, July 20, 2018. Winfrey and the contractor are talking about how the work on the new sidewalk, near the 80th Flying Training Wing's hangars, is coming along. Winfrey occasionally visits each one of his sites to check up on the progress the contractors he hired has done. (U.S. Air Force photo by Airman 1st Class Pedro Tenorio)