Susan O'Nan left Brinson Partners, where she was a partner and non-U.S. strategy analyst. A nine-year senior investment veteran of the firm, she was one of a three-person team that decides country allocation. Richard Carr, managing partner and head of the non-U.S. investments group, said she left Friday to look for new opportunities. She couldn't be reached for comment. Ms. O'Nan's duties will be temporarily assigned to the other team members.
Mr. Carr said the firm plans to replace her, but executives haven't decided yet whether to look internally or externally
