Complex sentence: Grunewald was president of Mercy College between 1972 and 1984, currently professor of Management at the Hagan School of Busines Iona College, teaching courses in Business Policy and Strategic Management.
Split into simpler sentences: Grunewald was president of Mercy College between 1972 and 1984. Since 1984 Grunewald is professor of Management at the Hagan School of Busines Iona College, teaching courses in Business Policy and Strategic Management.