Motivating for press conferences and teamtalks.
Tactical knowledge for in match advice.
Judging potential and ability for advice on signing professional contract to youngsters and some of his scout reports.
Man management to keep tabs on players happiness status so he can warn you before they become unsettled. I think it helps with better IO suggestions along the tactical knowledge.
Adaptability, which I suppose serves for doing a good job in your country's league and adapt his advice to the opposition.
The usual coach stats if you require him to do work on coaching.