 From September 1999 to July 2000 he was again in Washington, DC this time as the Chief of the Space Superiority Division in the Office of the Deputy Chief of Staff for Plans and Programs.He followed this assignment by serving from July 2000 to November 2000 as Director of Manpower and Organization in the same office.In November 2000 Shelton moved to assume the role of Director of Requirements at the Headquarters of Air Force Space Command in Colorado Springs, Colorado.