Initial situation: In one of Switzerland's largest ski areas, there was significant potential for improvement in the collaboration between the mountain railway and the DMO. Roles were unclear, communication was inconsistent, and personal tensions were straining the relationship. Approach: On behalf of the two chairmen of the boards of directors of the mountain railway and the DMO, we analyzed the established collaboration between their two organizations and formulated a central thesis: Sustainable cooperation only succeeds when both partners achieve better results together than individually. In a moderated workshop with delegations from both boards of directors, the goal was to identify and define precisely such areas and clearly define the respective responsibilities. Result: This not only facilitated open discussion, but also created a shared understanding of the benefits of clearly structured cooperation. The board delegations recognized that it's not necessarily necessary to work on as many tasks as possible together – but only where synergies clearly outweigh the cooperation effort. The mandate was thus concluded with high levels of acceptance and a clearly defined roadmap.