In this chapter André Wierdsma states that changing and learning need collective competencies to deal with variety and complexity. For the viability of organizing, it is crucial to deal with mutual differences on the basis of action, and the ability to learn from that action in a collective context. Organizing is regarded as organizing activities with the purpose of effecting transactions with stakeholders in the value chain. In this approach processes of changing are related with competencies of people to deconstruct and reconstruct meanings together, and re-order relationships and activities to take account of complexity and variety. In this chapter, a methodology is developed for co-creation in processes of changing and learning. Starting point is that player groups are willing to participate and learn during change processes together with players inside the organization. Eight principles for co-creating in change are worked out in detail. The methodology and intervention principles are illustrated with practical examples.