Results-Oriented Management: OPM Needs to Do More to Ensure Meaningful Distinctions Are Made in SES Ratings and Performance Awards, GAO-15-189: Published: Jan 22, 2015. Publicly Released: Feb 23, 2015: “GAO recommends that the Director of OPM consider various refinements to better ensure the SES performance appraisal system certification guidelines promote making meaningful distinctions in performance.… Continue Reading