Size capacity before deciding staffing

The decision

Derive capacity and team composition from demand, work type, and capabilities before fixing headcount.

Why it mattered

Choosing headcount first and justifying it later disconnects staffing from demand, complexity, and required capabilities.

The trade-off

Dimensioning requires more information and analysis before assigning people, but produces a team composition traceable to demand and makes capacity easier to adjust when workload changes.

What changed

Staffing discussions are connected to demand and capability instead of starting from an arbitrary number of people.

The outcome

The method is used as a Technology Operating Model capability; pricing, rates, and commercial models are not published.

Summary of a documented architecture decision. Method, mechanism and supporting evidence are not published.