[moasda]

I had to solve a similar issue in two teams. I'm not against documentation, but this wouldn't have solved the issue in my case. Documentation was available, but you couldn't clearly know if it's still up-to-date or which use case would be the right one.

The solution was to dissolve head monopolies. The best developer in the team was very supportive and tried to solve all problems himself instead of involving his colleagues to make them more independent from him. This was not malicious intent, but just helpfulness oriented to short-term solutions.

So it was a structural cause that could only be solved from outside the team.