Erik Ristuben was named CIO of North America at Russell Investments, said spokeswoman Jennifer Tice.
He replaces Noel Lamb, who left the company last month to pursue other opportunities in the U.K., Ms. Tice said.
Mr. Ristuben retains his previous responsibilities as CIO of multistrategy solutions with Russell Investments.
Separately, a handful of investment professionals involved with Russells money-market funds left the company last week: Mark Amberson, senior portfolio manager and head of short-term investments; Philip Coates, senior portfolio manager; and Helen Stewart, director of credit research. In September, parent company Northwestern Mutual Life Insurance Co. had to step in to offer guarantees on more than $760 million of those funds exposure to Lehman Brothers Holdings paper, when that New York-based brokerage giant declared bankruptcy.
Mr. Amberson was replaced by Kelly Mainelli, who was promoted from senior portfolio manager; and Mr. Coates was replaced by Joe Glynn, who was a portfolio manager. Ms. Tice said a search for Ms. Stewarts replacement is under way.
Asked if the four professionals were terminated, Ms. Tice said Russell Investments doesnt comment on personnel matters. She said Russell is pleased to have a strong bench and will be looking to make additional hires to fill any vacancies.
Additionally, Alan Schoenheimer was named head of international business at Russell Investments. It is a new position, Craig Morris, director of marketing, wrote in an e-mail.
Mr. Schoenheimer was CEO of Russells Asia-Pacific region, with oversight of operations in Australia, New Zealand, Japan and Asia. His role will expand to include Russell's Europe, Middle East and Africa operations. He will be based in London and reports to John Schlifske, Russells global president and CEO.
Chris Corneil, previously managing director of Russells Investor Services group, was promoted to managing director, Australia and New Zealand, and will assume some of Mr. Schoenheimers previous duties. A replacement for Mr. Corneil has not been named. Mr. Morris said the management structure in the Australia-New Zealand region is under review, and Mr. Corneil will announce a new management team and structure in the next few weeks.
Bruce Pflaum, managing director of Japan and Asia, will take over Mr. Schoenheimers Asia-Pacific duties.