Tom Gunn resigned as CIO of the C$32 billion (US$23.8 billion) Ontario Municipal Employees Retirement System, Toronto, said Jane Courtemanche, vice president-corporate communications. Mr. Gunn plans to take six months off and then perhaps start a consultancy advising companies on corporate governance issues. Paul Haggis, CEO, will serve as interim CIO for at least three months, according to Ms. Courtemanche. "Once he has a thorough understanding of what the investment portfolio needs, we will then do a search for a replacement. But that won't be until early next year," she said. Mr. Gunn's resignation comes just two months after Dale Richmond retired as CEO.