The role of CAS means that he may be the only person at the top table who can fully articulate operational air power at either the national or multinational level and have a working knowledge of capabilities possessed by others - achieved by being immersed in the subject throughout their career. CAS is not just a manager of personnel, he or she has to know how to fight a war, engage with overseas equivalents at the same level whilst educating, supporting and translating capabilities at the grand-strategic/political level.