Troubled retailer Spiegel Group Inc, operator of the Eddie Bauer stores and Spiegel and Newport News catalogues, on Friday said its chief executive officer Martin Zaepfel had retired. The Illinois-based company said it has also hired turnaround expert William Kosturos, a managing director of Alvarez & Marsal, as chief restructuring officer and interim CEO. On Thursday the firm named James Brewster as senior vice president and CFO.