Yvonne Rutherford, 413th Flight Test Group process manager, reviews student root cause analysis ideas during an Air Force Continuous Process Improvement Green Belt Training course Feb. 6, 2019, at Robins Air Force Base, Ga. After learning more about the AF CPI program, students demonstrated and applied the eight-step practical problem salving method on a fictitious work center issue. (U.S. Air Force photo by Jamal D. Sutter)