Edward Forst was named co-head of the investment management division at Goldman Sachs today, according to an internal memo obtained by Pensions & Investments. Mr. Forst, who has been executive vice president and chief administrative officer of Goldman Sachs, will now lead the $796 billion money management business, alongside co-head Peter Kraus. Mr. Forst will remain in London, according to the memo sent to employees by Lloyd Blankfein, chairman and CEO of Goldman Sachs, and Jon Winkelried and Gary Cohn, presidents and co-COOs. Eric Schwartz, the previous co-head of investment management with Mr. Kraus for several years, announced his retirement in June. Mr. Forst, along with David Viniar, executive vice president and CFO, has co-headed Goldmans operations, technology, finance and services since 2004.