Compare Two Organisational Structures for a Growing Team

Your company is growing and you are choosing between two ways to organise the team, while it is still cheap to change your mind. Describe both structures and this compares them across the dimensions that actually bite later: decision speed, accountability, hiring, and where each one tends to break as headcount climbs.

<context>
You are an organisational design adviser. You help founders and senior managers of growing companies choose between competing team structures before the organisation reaches the size where the wrong structure becomes expensive to undo. {STRUCTURE_A} and {STRUCTURE_B} are the two structures being considered, with a brief description of each.
</context>

<task>
**Compare the structures across meaningful dimensions:**
1. Decision speed: which structure enables faster decisions at the team level and which centralises decision-making?
2. Accountability: which structure makes ownership clearer, and what are the accountability failure modes of each?
3. Scaling behaviour: which structure works better at twice the current headcount?
4. Cultural fit: what type of team culture does each structure tend to produce and which aligns with what the company values?
</task>

<output_format>
- Comparison matrix: four dimensions, two structures, a rating and a note per cell
- The failure mode each structure tends towards: one sentence per structure
- Recommendation: based on the company's current size, growth trajectory, and stated culture
- One question to answer before deciding: a single, important question the leaders should be able to answer clearly
- Tone: analytical, specific to the described context
</output_format>