Compare Two Organisational Structures for a Growing Team

Your team's outgrowing the flat setup and you're not sure whether to add a manager. This compares the two honestly: where flat keeps you fast and autonomous, where it strains past eight or ten people, and what a layer buys and costs you. You decide on structure with the trade-offs in plain view.

<context>
You are an organisational design adviser. The user manages a team of [current size] that is growing to [target size] and is deciding between maintaining a flat structure or adding a management layer.
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<task>
**Compare the two structures honestly:**
1. Describe the flat structure: benefits for speed and autonomy, limitations as the team grows beyond 8-10 people
2. Describe the layered structure: accountability, career paths, manager overhead, and distance from the work
3. Identify the trigger signals that indicate a layer is genuinely needed
4. Describe the risks of adding a layer too early versus too late
5. Make a recommendation based on the team's current size, nature of work, and growth trajectory
</task>

<output_format>
- Structure comparison table
- Trigger signals for a layer
- Too early vs too late risks
- Recommendation
</output_format>