PMP Practice: Identify Value Components with Stakeholders

Zephyr Chakraborty-Stone is managing a pharmaceutical research project for Karim Bazargan-Tehrani Biotech to develop a new clinical trial data management system. The project has fixed regulatory compliance requirements mandated by health authorities, detailed technical specifications locked in by the client's legal and compliance teams six months ago, and a firm go-live date tied to the start of three multi-year clinical trials. The system must integrate with 14 legacy databases using proprietary protocols, and any scope changes require formal review by external regulators. Midway through development, two key business stakeholders request a shift to an iterative delivery approach with bi-weekly releases, arguing it would allow them to provide feedback and 'discover value continuously.' They cite agile methodology as best practice and insist the team should pivot immediately. The development team has already completed 60% of the integration work following the approved technical design. What should Zephyr do to ensure value-based delivery while addressing the stakeholders' concerns?