A project with a fixed timeline is starting its first of six iterations, but the team lacks the required skills. What should the project manager do?

Adding a Subject Matter Expert (SME) directly addresses the identified skill gap, which is crucial for a project with a fixed timeline. An SME can provide the necessary expertise, guide the team, and ensure the work is completed correctly and efficiently within the iteration. Filling the skill gap personally is not scalable or sustainable for a project manager, whose primary role is to lead and manage, not execute all technical tasks. Allowing the team to proceed without addressing the skill gap will likely lead to delays, quality issues, and failure to meet the fixed timeline. Inviting stakeholders to discuss a mitigation plan is a reactive step; the immediate and proactive solution is to acquire the necessary skills for the team.