Sizing teams and spans
How many people a manager can lead, and how many managers a leader of managers can support, treated as design constraints. The organisation's structure should follow them instead of following a tidy org chart. Span of control depends on the reports' maturity, the stability of the work and the coordination each report needs.
Evidence grade: practice A widely adopted practitioner model with clear provenance.
Use it when
Designing or changing structure; diagnosing an overloaded manager or an executive bottleneck.
Where it stops working
The right numbers depend on context. A span that works in steady state fails during change, and optimising the number while ignoring the context gives neat charts and failing teams.
Where the standard uses it
- PL-6Leading through leadersSelecting, developing, and holding accountable the managers who report to you.
- SV-6Organisational design and leading changeTeam structures, ownership boundaries, reorgs, and transitions.
Sources
- Will Larson. An Elegant Puzzle: Systems of Engineering Management. Stripe Press, 2019. In the bibliography
Used alongside it
- Coaching managers through change practice
- Conway's law practice
- Leading change practice
- Managing managers practice
- Readiness practice
- Structure follows strategy practice
Cite this model
Chicago, BibTeX and licence →Engineering Management Academy. (2026). Sizing teams and spans. In Engineering Management Academy Body of Knowledge (Version 3.1, TEC.sizing-teams-and-spans). https://www.engineeringmanagement.academy/body-of-knowledge/techniques/sizing-teams-and-spans