John C. Winchester was named director of public markets for the $17 billion Pennsylvania State Employes' Retirement System, Harrisburg. Mr. Winchester, who most recently was a consultant with the NYNEX pension fund, replaces Joseph Braccia, who joined Miller Anderson & Sherrerd as client account manager.
Diane Sterthous, who had been director of fixed income at the Pennsylvania fund, was named director of venture capital and alternative investments. She replaces Erica C. Bushner, who resigned last month. The fund plans to hire a new director of fixed income in the next several months.