Participation in a strategic network constitutes a radical departure from formerly prevalent modes of organizing; it requires a corresponding change of, theories-in-use'. The transition process between the cognitive constructs related to, old' organizational forms, e.g. divisional or functional structures, and those related to new' organizational forms, e.g., strategic networks' can be conceptualized as an "un-learning" process. Understanding these transition processes may help to better understand and manage entry processes in strategic networks