Senior Master Sgt. Stephen Holdenreid, 100th Air Refueling Wing continuous process improvement manager, discusses the fundamentals, principles and wastes during a continuous process improvement seminar at RAF Mildenhall, Sept. 26, 2019. The CPI seminar was to inform spouses on key principles of lean, Six Sigma method and business process reengineering. (U.S. Air Force photo by Staff Sgt. Matthew J. Wisher)