In the lifecycle of a high-consequence project, there is a common point of tension: the “Procurement Wall.” To the engineering and mission teams, procurement can feel like a bureaucratic bottleneck designed to slow things down. To the procurement team, the mission side often feels like they are “moving the goalposts” mid-stream.
This friction is rarely the result of incompetence or a lack of effort. More often, it is a symptom of Requirements Drift, the slow, subtle misalignment of stakeholders that occurs between the initial vision and the final purchase order.
The Anatomy of the Drift
Requirements drift happens when the “What” (the technical need) and the “How” (the procurement and compliance rules) aren’t locked in sync from Day One. It typically manifests in three ways:
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The Translation Gap: Engineers speak in terms of capabilities and performance metrics; procurement speaks in terms of CLINs, FAR/DFARS clauses, and vendor solvency. Without a common language, the original mission intent gets “lost in translation” during the contracting phase.
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Scope Creep in the Dark: As a project moves toward acquisition, small “nice-to-have” features are added. By the time it reaches the final approval, the scope has expanded beyond the original budget or the selected vendor’s actual capabilities.
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The Compliance Lag: A technical solution is chosen, but the security or policy requirements change. Because the stakeholders aren’t aligned, the project hits a wall when it’s discovered that the “best” tool doesn’t meet the necessary accreditation standards.
Alignment as an Operational Discipline
True stakeholder alignment isn’t just a meeting; it’s a discipline. It requires a shared “Source of Truth” where the mission requirements are inextricably linked to the procurement constraints. When everyone, from the CFO to the Lead Architect, sees the same data, friction dissolves and velocity increases.
Frequently asked
What is requirements drift?
It is the slow, subtle misalignment of stakeholders that occurs between a project's initial vision and the final purchase order, when the technical need and procurement/compliance rules are not locked in sync from day one.
What are the three ways requirements drift shows up?
The translation gap between engineering and procurement language, scope creep in the dark that expands beyond budget or vendor capability, and compliance lag where the chosen tool fails to meet accreditation standards.

