This document introduces a cluster management assessment tool in the form of a roadmap to evaluate collaboration and clusterization. The roadmap contains three cycles: 1) a strategic cycle to determine priorities and engage leadership, 2) a planning cycle to understand the current state, envision the future state, and create a clusterization plan, and 3) an execution cycle to implement the plan and embed clusterization activities. The tool was developed based on lean transformation practices and aims to provide an easy-to-use guide for cluster managers to identify opportunities and challenges to improve collaboration. The roadmap is intended to be adapted to different cluster contexts as a holistic approach for cluster evaluation and transformation.