The document profiles several influential management theorists and their key contributions: 1. Henri Fayol proposed the functions of management as planning, organizing, commanding, coordinating, and controlling. 2. Peter Drucker advocated for management by objectives (MBO) which focuses on results over processes through goal setting and performance reviews. 3. Michael Porter described three generic competitive strategies: cost leadership, differentiation, and focus. 4. The document examines additional theorists including Theodore Levitt, Abraham Maslow, Frederick Taylor, Elton Mayo, Douglas McGregor, and W. Edwards Deming.