sentences:  After serving as Washington, D.C. correspondent (1963–1965), city editor (1965–1967) and managing editor (1967–1968) of the "Sun-Times", he was promoted to editor in chief in 1968.From 1976 to 1976, he concurrently served as editor in chief of the "Sun-Times"'s sister publication, the "Chicago Daily News".In 1980, he attended the six-week Harvard Business School Advanced Management Program, and relinquished his editorial duties, continuing as the newspaper's publisher.