Final answer:
Jefferson should use succession planning and employee development methods to manage the talent surplus.
Step-by-step explanation:
Jefferson, the manager at Gold Storage Vaults, Inc., should use Succession planning and Employee development methods to manage the talent surplus. Succession planning involves identifying and developing internal employees who have potential to fill key positions in the future, ensuring a smooth transition when current employees retire or leave. Employee development focuses on training and enhancing the skills and knowledge of existing employees to prepare them for future roles within the organization.