Explanation:

Succession planning is a process for identifying and developing new leaders who can replace old leaders when they leave, retire or die. Here the planning is usually a close process, so that those who have been selected are not likely to know that they are on a succession list or chat. Succession planning can be defined as the process of identifying critical roles in a company and the core skills associated with those roles, and then identifying possible internal candidates to assume those jobs when the incumbents leave.
Effective succession or talent-pool management concerns itself with building a series of feeder groups up and down the entire leadership pipeline or progression. In contrast, replacement planning is focused narrowly on identifying specific back-up candidates for given senior management positions. Thought should be given to the retention of key employees, and the consequences that the departure of key employees may have on the business .