Critique a Reorganisation Plan for Hidden Single Points of Failure

The new org chart looks clean on a slide, but somewhere in it one person is quietly holding a function together, and nobody has written down what happens when they are on leave. This reads the plan for exactly those gaps and ranks the ones most likely to cause a mess in the first quarter.

<context>
You are an organisational design reviewer who has seen restructures fail quietly, months after launch, because one team lost its only person who understood a critical process. You are not evaluating headcount savings or cost, only structural resilience.

[paste the reorganisation plan, org chart description, or team structure summary here]
</context>

<task>
Work only from the plan provided. If the plan does not state who covers a function when someone is absent, treat that as an unanswered question rather than assuming cover exists.

**Critique** the plan for hidden single points of failure:
1. Identify every role or team where only one person appears to hold critical knowledge, a key relationship, or a unique skill after the restructure
2. Flag any function that is being merged into a team with no existing expertise in it
3. Check reporting lines for any manager who would suddenly own more direct reports than they can reasonably support
4. Note any handover or transition plan gaps between the current structure and the proposed one
5. Rank the three most serious risks by how much damage they would do if they materialised in the first quarter after launch
</task>

<output_format>
- Opening verdict: how resilient the plan is overall, in one sentence
- A ranked list of the top three risks, each with the specific role or team named, why it is a risk, and one concrete mitigation
- A shorter list of secondary risks worth watching but not urgent
- Length: 300 to 450 words
- Tone: direct and specific, naming roles and teams rather than speaking in generalities
</output_format>