Kevin Tabb, left, vice president for medical affairs at SHC, presents Sandi Edgar with her 20-year service pin during a reception honoring Edgar, who retired Feb. 1 as director of medical staff services (MSS). Edgar will be succeeded effective Feb. 25 by Debra Green, a 17-year veteran of medical staff administration, and for the past 18 months, director of MSS at UC San Francisco.