designing

competencies and abilities required

No one is going to give you the keys to the plane because you have a theory about flying, a model of flying, a toolbox for flying, a method for flying....etc.

The action of flying is demanding and requires high level skills and cognitive abilities. The same is true for ‘actual’ designing. You have to know how to do what you are doing and why you are doing it. Design ‘flight’ schools are needed to help develop competent designers.