U.S. Army Reserve Maj. John Laymon (left) observes as Lt. Col. Michael Yaffe (right), a trauma surgeon with the 399th Combat Support Hospital, 804th Medical Brigade, 3d Medical Command (Deployment Support), gives direction and receives feedback from his team April 2, 2016 during an exercise at the Mayo Clinic Multidisciplinary Simulation Center in Rochester, Minnesota. Laymon, a nurse practitioner with the 4224th U.S. Army Hospital, Central Medical Area Readiness Support Group, Army Reserve Medical Command, Des Moines, Indiana, served as an observer-controller/trainer during the exercise, which focused on helping the unit implement the Team Strategies and Tools to Enhance Performance and Patient Safety, or TeamSTEPPS, framework.