Patheon, Inc. has revised the roles of several senior executives at the company. Nick DiPietro, president and chief operating officer, will assume a new role as executive vice president, corporate development, effective March 1, 2008. In his new role, Mr. DiPietro will lead the development of a long-term corporate strategy and assist in evaluating future growth opportunities. He will continue to report to Wesley P. Wheeler, chief executive officer. Clive Bennett, president, Patheon U.S.A., wi...