The Chief of Staff (CoS) plays an important role in identifying and retaining key personnel in M&A and integration. The CoS early identifies which employees are critical to the success of the deal and ensures that they receive clear information about future opportunities, career paths, and development plans. The CoS works closely with HR to develop targeted retention programs, such as special incentives, mentorship, or development projects. By involving key personnel in the integration process and giving them influence over the change process, engagement and loyalty are increased. In Swedish organizations, where participation and transparency are important, it is crucial that the CoS communicates openly about changes and listens to employees' questions and concerns. By working structuredly with talent management, the risk of talent loss is reduced and the organization ensures that it retains its innovation and delivery capabilities.