Citigroup's Ernesti heads for New York

Richard Brown and Margaret Dawson will work in tandem on Citibank's regional securities services business after the current head, Richard Ernesti, announced his departure from Asia. Ernesti has run the business for two years and will be relocating to New York to focus on a new project for the bank. Ernesti leaves the region next week and will begin his New York job on August 4. A newly created role, he will be charged with building Citigroup's relationships with hedge funds and prime…