A project manager joins a team delivering a customized ERP system. The development team identifies a potential design problem and, after reviewing it with the product owner and team, all agree to revise the approved design to avoid a deployment defect. What should the project manager do next?

The team has identified a potential design problem and agreed on a revised design. Before implementing this revision, it's crucial to validate that the new design will indeed solve the problem without introducing new issues. A proof of concept (POC) is an effective way to test the feasibility and viability of the revised design on a small scale, ensuring it works as intended before committing to full implementation. Submitting a change request and obtaining approval (A) would be premature without first validating the proposed solution. Notifying the client (B) is also premature; the project manager needs to have a validated solution before communicating with the client about a design change. Revising specifications and giving them to the development team (D) skips the critical validation step, risking further rework if the revised design is flawed.