I'm not trying to suggest that. I'm suggesting an accurate diagnosis of the mistake that was made by management.
In the case of my example above, it was a failure of management to hire a sufficiently competent person, or a failure to fire the person when their lack of competence became apparent. It wasn't (in my example) a failure to communicate requirements properly.
OK I get what you are saying, but if a manager is not able to communicate clearly enough that employee understands the directions given, then it is the fault of the manager.
If the employee understand the task given but does not have the skill to carry it out satisfactory, then it may be a question of the competency of the employee.
In the case of my example above, it was a failure of management to hire a sufficiently competent person, or a failure to fire the person when their lack of competence became apparent. It wasn't (in my example) a failure to communicate requirements properly.