Bed Bath & Beyond Inc., the Union Township-based housewares retailer, promoted Eugene A. Castagna to chief operating officer and Susan E. Lattman to chief financial officer and treasurer, the company announced today.<br /><br />Castagna, 48, was the company's chief financial officer and treasurer. He has been with Bed Bath since 1994. Lattman, 46, was the vice president for finance. She has been with the company since 1996.<br /><br />The company also announced it has extended its employment agreements with its co-chairmen, Warren Eisenberg and Leonard Feinstein, for three years, to 2017. Eisenberg, 82, and Feinstein, 76, founded the company.