Configuring and applying complex requirements processes in organisations remains a challenging problem. This paper reports the application of the Map-driven Modular Method Re-engineering approach (MMMR) to a research-based requirements process called RESCUE in order to identify omissions and weaknesses, and to reason about improvements to RESCUE that are currently being implemented. Results have implications for both the scalability and effectiveness of the MMMR approach and for innovative requirements processes such as RESCUE.