This document outlines 12 reasons for the growing importance of succession planning and management (SP&M) programs. It states that strategic success depends on having the right leadership in place and leaving leadership development to chance will not work. Additionally, downsizing has reduced the middle management ranks that traditionally trained future leaders. The document argues that SP&M programs are needed to systematically identify and develop the best successors, not just rely on managers choosing clones of themselves. SP&M can also help communicate career paths, establish development plans, identify replacement needs, increase the talent pool, provide opportunities for high-potential workers, and tap into organizational intellectual capital.