The project manager should first revisit the project charter and assess if the project goals and objectives can be met with other alternatives. This could include re-evaluating the project requirements, researching other suppliers and/or re-designing the project in order to reduce the cost. If all other alternatives are exhausted, then the project manager should seek approval from the project sponsor or the CEO to proceed with the purchase order.

A project benefits management plan should include the target benefits, which are the expected tangible and intangible outcomes that provide value to stakeholders. It should also detail the strategic alignment, showing how the project aligns with the organization's objectives and strategy. Additionally, the plan should outline the time frame for realizing the benefits, indicating when and how the benefits will be delivered123.
References:
Project Benefits Management Plan: PMP Exam Master Tips1
Benefits Management for Projects: Making a Benefits Management Plan2
Benefits Management Plan - Project Management Knowledge3

Comprehensive and Detailed Explanation:
A hybrid approach allows the project manager to apply a predictive method for the building construction (stable and well-defined scope) and an adaptive method for the scientific equipment (uncertain and evolving requirements). This balances control with flexibility.
Option B addresses contracting but doesn't handle changing requirements.
Option C contradicts the evolving nature of equipment needs.
Option D is a contracting strategy, but it doesn't fully address planning methodology.
References:
PMBOK Guide - Seventh Edition, Development Approach and Lifecycle Performance Domain Agile Practice Guide - Hybrid Approaches
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This scenario highlights a common project risk: resource dependency on a single skilled team member. The most immediate and practical action is to ensure active collaboration among team members to foster knowledge transfer. Agile and adaptive environments encourage continuous collaboration to mitigate such risks early. Option D reflects proactive risk response and aligns with the Agile principle of shared knowledge and team empowerment.
The Agile Practice Guide (Chapter 4: "Agile Teams and Team Performance") emphasizes the importance of collaboration and cross-functional learning. It promotes the development of T-shaped skills, where individuals develop a broad range of knowledge while maintaining deep expertise in specific areas. This approach allows other team members to step in when needed.
Option A is too long-term and not responsive enough to the current project phase.
Option B might not address the knowledge gap if others are untrained.
Option C is useful but does not solve the immediate knowledge-sharing concern.
References:
PMBOK Guide - Seventh Edition, Principles: "Build quality into processes and deliverables" and "Engage stakeholders." Agile Practice Guide, Chapter 4: "Team Composition and Empowerment"
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