SoftBank, a large Japanese investment company, lacks an effective succession plan for replacing its founder and CEO Masayoshi Son. As Son's health declines, SoftBank has struggled to identify potential successors within the company who have the necessary skills and experience. Past attempts to groom outside executives as successors have failed. Effective succession planning requires developing talent internally, understanding cultural factors, and job shadowing potential successors. SoftBank's lack of succession planning could disrupt the company's culture and strategy when new leadership eventually takes over.