Mellon Financial Corp. in Pittsburgh has named first vice president Donald G. Mulligan a sales officer and hired John Taylor to be a sales officer at Mellon Private Asset Management.

Mr. Mulligan is based in

New York. He was the New York regional manager for Mellon Private Mortgage.

He joined the company in 1986 and has 30 years of financial services experience.

Mr. Taylor, who was also named a vice president, is based in Greenwich, Conn. He was a senior vice president and the managing director in charge of trust, investment, and planning services for wealthy clients in Greenwich at First Union National Bank.

He has 25 years of experience in financial services and sales.

Mellon also hired James J. Witterschein to be a portfolio manager and a vice president at Mellon Private Asset Management.

Mr. Witterschein, who is based in New York, held a similar job at Merrill Lynch Investment Managers in Princeton, N.J.

He has 20 years of financial services experience.

OppenheimerFunds Inc. has hired Kenneth Winston to be the head of risk management, quantitative research, and product development.He was also named a senior vice president. He is based in New York.

Mr. Winston was a principal at Richards & Tierney Inc. in Chicago, where he was in charge of international risk analysis business, quantitative investment management, and returns-based analysis software.

Before that he had been the director of research and a principal at Balch Hardy Scheinman & Winston Inc. in New York.

SOUTHEASTAmSouth Bank in Birmingham, Ala., has promoted John A. Acosta to business banking sales manager for the west coast of Florida.

Mr. Acosta, who was also named a senior vice president, had been the business banking sales manager for the Tampa Bay region for three years since joining AmSouth.

Before that he had held a similar job in Tampa at the Jacksonville-based Barnett Bank, where he had worked for 10 years until NationsBank Corp. (now Bank of America Corp.) of Charlotte, N.C., bought it in 1998.

Barclays Capital, the investment banking division ofBarclays PLC, has hired Federico Sacasa to head investment banking for Latin America and Carlos Mauleon to head debt capital markets for Latin America.

They were also named managing directors.

Mr. Sacasa was also named the senior executive in the company's Miami office. He reports to Robert C. Griffin, the New York-based head of investment banking for the Americas.

Mr. Sacasa was the president of the Latin American global corporate and investment banking group for three years at Bank of America Corp. of Charlotte, N.C.

He had joined the company in 1998 when NationsBank Corp. bought his previous employer, BankAmerica Corp. of San Francisco, for which he worked in London as head of client relationship management for Europe, the Middle East, and Africa.

Before that he had been the head of sales, marketing, and product development and a group executive vice president at BankAmerica, which he joined in 1988 as the manager of international affiliates.

Mr. Mauleon is based in New York and reports to Grant Kvalheim, the New York-based global head of capital markets, and Naguib Kheraj, the London-based global head of investment banking.

Mr. Mauleon was a managing director and the head of fixed-income capital markets for Latin America at Chase Manhattan Corp. (now J.P. Morgan Chase & Co.), where he worked for two years.

Before that he had held a similar post as a senior vice president at Lehman Brothers.

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