> How do you know what roadblocks are valid to remove if you dont understand what they do.
Roadblocks are almost exclusively a "people problem" - politics, identifying stakeholder needs, inter-team coordination, etc.
> How do you performance manage employees if you dont understand what they do.
By working to identify value added to the organization via quantifiable metrics and working with team members to define professional growth tasks relevant to both the person and the organization.
None of the above requires a manager to know how to do what the people hired can do.
