Steven Pisarkiewicz is the new executive vice president and head of BNY Asset Management, New York. He replaces Newton P.S. Merrill, who will retire May 31. Mr. Pisarkiewicz was chief investment officer of structured equities, a member of the investment policy group for value equities and a senior portfolio manager at Alliance Capital Management, New York. Drew W. Demakis, a senior portfolio manager, will replace Mr. Pisarkiewicz as CIO, but no one will pick up his other duties, said John Meyers, Alliance spokesman.