Succession planning is a process that identifies and prepares employees for key roles as current role holders retire or move on. It ensures the organization has backups in place and does not experience disruptions. Senior executives regularly review top performers to assess their abilities and decide who would be suitable replacements. Succession planning saves costs over external hires, reduces attrition, and allows for identifying and grooming internal talent over time. However, over-reliance on successors can stifle new ideas and sometimes outside hires are preferable to fresh perspectives. Overall, succession planning provides continuity and development opportunities within an organization.