<quote> The managers role is not to make technical decisions, his job is to ensure that other team members will help that "excusing" engineer to find solution.

<quote> The managers role is not to make technical decisions, his job is to ensure that other team members will help that "excusing" engineer to find solution. Managers role is to detect engineers seem to need help too often, but he is looking for pattern there - not one quick search over what might be controversial issue. </quote> That is exactly what I tried to say (maybe in the wrong way). A manager's job isn't to make technical decisions or help the engineer with code. It is to have an higher level view of the project, how it is going, and be able to help make it through. So, picking the rails 7 example, in this case the manager should be able to read about it and say, "Hey engineer X, have a chat with Bob in the frontend team, he may be able to help you out since he has experience with socket communication". Not decide to change rails to node because he read a blog post about how great node is.