(L-R) Maj. Gen. Robert E. Duignan (Ret.) looks on as Brig. Gen. Eric W. Crabtree shows a Senior Executive Service lapel pin to the photographer. General Duignan presented the SES pin to his successor, 4th Air Force Commander General Crabtree, at the April 30th ceremony at 4th AF. (U.S. Air Force photo/2Lt. Zachary L. Anderson)