This article presents an important aspect of the governance and management of network organisations – planning and implementing organisational change. The research is based on the experience gained during the planning of the transformation from ECHO Project Consortium to a future collaborative networked organisation. The process of selecting requirements for change is described in its methodological and procedural aspects, as well as in terms of its environment – the EU cybersecurity domain. The ADKAR approach is presented in brief as the main framework for change management, and its application features for collaborative organisations are identified. Finally, the article presents a tentative transition plan with its main phases and activities.