Some professionals know the answer.
Fewer know how to make the answer consequential inside an organisation.
That gap is not always about confidence, communication or seniority. Often it is about organisational judgement.
You may understand the problem correctly. You may have the data. You may even have the better recommendation. But the work still has to pass through incentives, hierarchy, timing, ownership, risk appetite, prior commitments and the emotional temperature of the room.
This is where expertise often reaches its limit.
Expertise helps you see what is true. Organisational judgement helps you understand how truth can be made useful without being distorted.
It helps you decide when to push, when to sequence, when to reframe, when to hold the line, and when to let the system catch up. It also helps you see the difference between real disagreement and positional behaviour.
The test is not whether you can defend your analysis in isolation.
The test is whether your reasoning can survive contact with the organisation and still improve the decision.