The process of creating the business plan reveals whatever necessary skills are not in place. One can be skilled and yet be an incompetent businessperson.
In my experience, combination of purely logical (money) and emotional (get the game etc.) attitudes towards any business is the most effective. Skewness toward any of the extremes as usually is not optimal.
Agree with you here with one note: often the skill is to see what must be done. Not skilled enough person may simply overlook important details. "The difference which makes the difference" in NLP terms.
Yea, but the skill is needed to distinguish a competent manager from the incompetent or even worse, a fraud.
One can recognize skill in others even though he doesn't necessarily have them himself. Are we talking about running a business now?