Based on Minzberg's work and on observer-participation, this inside st
udy of a big consulting firm shows how the latter's internal organizat
ion has arisen out of a cleavage between an ''entrepreneur'' structure
and a closed system. Thanks to the former, adjustments can be made to
an uncertain environment (decentralization, personal relations) where
as the latter, grounded in symbolic and material resources, ensures th
e firm's stability. This cleavage is doubled by the norms for socializ
ing consultants: inhouse norms and external norms borne by clients. Th
e result is ongoing tension.