John Drzik, who earned a B.S.E. in civil engineering from Princeton in 1983, has been named president and CEO of the Oliver Wyman Group, which was recently formed to consolidate three top management consultancies — Mercer Management Consulting, Mercer Oliver Wyman and Mercer Delta Organizational Consulting. The Oliver Wyman Group specializes in strategy, operations, risk management, organizational transformation and leadership development. Drzik was formerly the president of Mercer Specialty Consulting, a subsidiary of Marsh & McLennan Companies, Inc.