Steven Bleiberg was named managing director and head of global...

Steven Bleiberg was named managing director and head of global investment strategy at Citigroup Asset Management, Stamford, Conn., said Mary Athridge, spokeswoman. He replaces William Knapp, who was named managing director, personal investment management, at Northern Trust Corp., Chicago, earlier this year. Mr. Bleiberg was chairman of the global equity strategy group at Credit Suisse Asset Management, New York. Suzanne Fleming, a CSAM spokeswoman, said his duties will be handled by other group members.