This article compares changes in the education and career paths of senior federal civil servants in Canada between 1967 and 1987. It shows that there has been a marked trend toward managers with less formal education than had previously been the case and also a shift toward managers with less experience in the policy areas within which they are responsible for providing policy advice and program management. This finding is consistent with Osbaldeston's study of Canadian deputy ministers, and with studies of bureaucratic elites in other Western democracies. In an increasingly complex environment, problems facing government decision‐makers require high levels of technical expertise. This requirement is central to Weber's concept of bureaucracy, and it has been used as an explanation for the increasing prominence of bureaucrats in the policy‐making process. In recent decades, however, bureaucratic reforms have emphasized the administrative functions of senior managers at the expense of their technical roles. In Canada, at least, this process appears to have gone so far that it may have seriously compromised the capacity of senior civil servants to give informed advice and to make knowledgeable decisions about the policies and programs of their departments.