The changing of the guard at CBS Evening News is complete. Patricia Shevlin has been named executive producer of the CBS Evening News With Scott Pelley effective June 6, when Pelley will make his debut as CBS’ lead news anchor. Shevlin, a 38-year CBS News veteran, has been the executive producer of CBS Evening News, Weekend Editions since January 2000. Shevlin replaces Rick Kaplan, who has served as executive producer for Pelley’s predecessor Katie Couric. His last day is tomorrow.