I remember seeing summot about this on another forum,so ive found this that might help you out

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Like everybody else, i want the best for my team, and that includes 5 star coaches. After a bit a personal research into Coaches and FM I have found out the following. Some of this you may already know or think is obvious but I thought I would post it to inform and so it could be debated.
Star Rating System
As I'm sure you knew, a coaches star rating is based on his attributes in the given area. This can be applied to most of the areas, apart from Set Pieces, as this area is made up of more than one attribute.
5 Star = 18+
4 Star = 15+
3 Star = 10+
2 Star = 6 +
1 Star = 5-
Strength; Fitness.
Aerobics; Fitness.
Goalkeeping; Coaching Goalkeepers.
Tactics; Tactics.
Ball Control; Technical.
Defending; Defending.
Attacking; Attacking.
Shooting; Technical, Attacking.
Set Pieces*; Technical, Attacking, Mental.
*The most important attribute is first.
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Hope that helps you :thup: