NEW YORK: When Marcia Silverman began her career at what is nowOgilvy PR, Ronald Reagan had just been sworn in as the 40th President ofthe United States, Prince Charles married Lady Diana, and the firstSpace Shuttle launched.

Twenty-one years later, with an impressive Washington public affairscareer behind her, Silverman has become CEO of the worldwide agency. Shereplaces Bob Seltzer, who quit ...