Thomas Mazloum has been promoted to Crystal Cruises’ senior vice president, operations. Mazloum, who has served as Crystal’s senior vice president, hotel operations, since 2003 assumed the responsibilities for the fleet’s marine operations this month with the March 31 retirement of Joe Valenti, Crystal’s senior vice president, marine operations. As head of hotel operations for Crystal Cruises, Mazloum’s responsibilities include the supervision of Crystal’s food and beverage, entertainment, quality assurance, land programs, service training, onboard guest services and profit centers, and purchasing department. In Mazloum’s new role he will also oversee the ships’ technical and nautical operations, regulatory compliance, safety and security, environmental stewardship, and seagoing personnel.