In the career civil service the US federal government has long been guided by a merit system. This article traces how the principle of merit in appointment and promotion has developed since the nineteenth century and examines contemporary applications of competency frameworks in the US – their development, character, strengths and weaknesses. If core competency discussions and frameworks are to have a broader impact at both the government wide and the agency level, the frameworks will have to be disentangled. Existing notions of competencies for the political appointees, the leadership echelons of the career service, the rest of the career service, the entire government, central agencies, individual agencies, and badly needed future leaders not only suggest superhuman abilities, but also contain seriously conflicting expectations.