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John R. Stevens, 49 years old, was named senior executive vice president and chief operating officer, both new positions.
He will continue to report to Donald Pardus, president and chief executive officer.
Mr. Stevens was executive vice president of this electric-utility holding company.
Arthur A. Hatch, 59, was named executive vice president of the company.
He was previously president of the company's Eastern Edison Co. unit.
John D. Carney, 45, was named to succeed Mr. Hatch as president of Eastern Edison.
Previously he was vice president of Eastern Edison.
Robert P. Tassinari, 63, was named senior vice president of Eastern Utilities.
He was previously vice president. 

