The fifth chapter focuses on the core of the action research project, detailing how the intervention addresses the organization’s practical innovation goals. A key element is the introduction of a new heuristic for the management of material requirements, enabling engineers to identify and mitigate over-engineering at various system levels. By distinguishing between excluded, focus, and informative requirements, the intervention ensures that only essential material and performance criteria are prioritized. A frugal verification plan is integrated into the early stages of vehicle development and aligns material properties with system-level demands. The intervention demonstrates how a system-oriented frugal engineering approach can effectively streamline innovation, reduce inefficiencies related to over-engineering, and prevent unnecessary optimizations.