 In 1941, Anne Hood Harken took over as director; during her tenure, the program underwent significant changes, partly prompted by the exigencies of World War II and the increased opportunities for women to hold personnel jobs in industry and government.The program expanded to offer courses on administrative problems in industry; these classes, taught by the faculty of the Harvard Business School, had earlier only been given to men.Enrollment increased significantly with this new approach, with the class size growing to 30 students.