| name | org-design-principles |
| description | Use when designing or redesigning organizational structures — covers configurations, decision rights, Conway's Law, and team topologies. |
Org Design Principles
Core Principles
- Purpose, then structure: design the org to enable the work
- Conway's Law is real: whatever you ship reflects the org chart
- Cognitive load is a constraint: teams have finite capacity
- Subtractive design beats additive: remove a layer before adding one
- Decision rights matter more than reporting lines: who decides what is the structure
- Stage matters: a 30-person org doesn't need product management; a 500-person org without it is suffering
Mintzberg's Configurations (Brief)
Five organizational configurations (Mintzberg, Structure in Fives, 1983):
- Simple Structure: founder + a few employees; direct supervision
- Machine Bureaucracy: standardized processes; large operational orgs
- Professional Bureaucracy: standardized skills; expertise-driven (hospitals, law firms)
- Divisional: independent business units; HQ light coordination
- Adhocracy: project-based; flexible; innovation-driven
Most tech companies are some hybrid. The config evolves with stage.
Functional vs. Divisional vs. Matrix
| Structure | When It Works | Risk |
|---|
| Functional (eng, product, design) | Small to mid-scale; coordination via shared rituals | Hard to coordinate cross-function for customer outcome |
| Divisional (GMs per business unit) | Multiple distinct business lines | Duplication; weak functional craft |
| Matrix (dual reporting) | Truly cross-cutting work | Coordination cost; needs explicit operating norms |
Default for most growth-stage tech: functional with strong cross-functional rituals.
Team Topologies (Skelton & Pais, 2019)
Four team types:
- Stream-aligned: deliver value end-to-end on a slice of business — the default team type
- Platform: provide internal services to make stream-aligned teams faster
- Enabling: temporary; help stream-aligned teams adopt new capabilities; dissolve
- Complicated-subsystem: deep expertise required (ML, payments, compliance)
Four interaction modes:
- Collaboration: high coupling; short-lived
- X-as-a-service: low coupling; long-lived
- Facilitating: enabling team to stream team
- Compliance / governance: when audit/regulation requires gating
Spans of Control
| Manager type | Healthy span |
|---|
| First-line manager (manages ICs) | 6–12 |
| Manager of managers | 5–9 |
| Functional VPs | 5–8 |
| CEO directs | 7–10 (12+ is a sign) |
| Founder directs | Audit if > 9; founders often over-collect |
Wider spans require more autonomous teams; narrower spans mean more management overhead per IC.
Layers
From CEO to most junior employee:
| Headcount | Healthy layers |
|---|
| <100 | 3–5 |
| 100–500 | 4–6 |
| 500–2000 | 5–7 |
| 2000+ | 7–9 |
More layers = slower decisions, more political work, more "translation." When the founder adds an extra layer to manage trust issues, the layer rarely comes out.
Decision Rights
Name the decisions, then assign authority:
- Hiring approval
- Comp approval
- Headcount allocation
- Product decisions
- Customer commitments
- Vendor selection
- Brand and messaging
Pick a framework (RACI, RAPID, DACI) and use it consistently.
Bias toward decentralization: senior leaders typically under-delegate. The test: "if this decision was wrong, would the consequences be reversible?" If yes, delegate.
Conway's Law
Conway, 1968: "Organizations design systems that mirror their communication structures."
Practical implication: the products you ship reflect how the org is organized. Want a customer-coherent product? Organize around the customer journey, not around technical components.
Inverse Conway: design the org for the systems / customer experience you want.
Common Failure Modes
- Premature specialization: Chief Strategy Officer at 80 people; "Center of Excellence" at 200
- Hidden bottlenecks: one person on every decision; team won't admit it
- Founder span explosion: 14 directs because no one can be promoted
- Unclear ownership at seams: marketing-product handoff, sales-CS handoff
- Matrix without operating norms: dual reporting with no priority resolution
- Reorg as solution to performance problem: shuffling boxes to avoid firing
- Importing structure: copying Stripe at Series E into your seed-stage company
Signs of Org Distress
- Decisions take more than 2 weeks
- Same conflict between two teams every quarter
- "We need to align" appears in 5+ Slack messages a day
- Senior leaders attending meetings to "represent their function" and adding nothing
- Roles created to retain people, not to do work
- "Shadow leaders" with informal control
Reorgs
Reorgs are expensive. Only do them when the cost of not is higher.
When you do:
- Strategy first; structure second
- Communicate generously and early
- Be specific about who's affected and how
- Address comp and reporting changes clearly
- Plan the transition — not just the announcement
Cross-References
org-designer agent
spans-and-layers skill
workforce-planning skill
change-management skill
Key References
- Mintzberg, H. (1983). Structure in Fives.
- Skelton, M., & Pais, M. (2019). Team Topologies.
- Stanford, N. (2018). Guide to Organisation Design.
- Conway, M. E. (1968). "How do committees invent?"
- Lencioni, P. (2012). The Advantage.