Field Griffith was named director of real estate investments at the Virginia Retirement System, Richmond, a new position. Mr. Griffith is assisting Charles W. Grant, managing director, who runs the $38.5 billion system's real estate investments, said Nancy Everett, CIO. The system has about 3.5% of assets in real estate. Mr. Griffith was executive vice president at BGK Properties. Tom Wilson, executive vice president with BGK Properties, assumed a portion of Mr. Griffith's responsibilities, said Eugene Wolkoff, general counsel.