Midfields: Care more overall about the attacking quality and physical attribution then defending skill but of coz balance is better... Good to have some players with speciality..dribbing and play maker are useless .. U need more this: Passing skill/corner kick specialist/free kick specialist or some how penalty kick is fine too...
Defenders: need more solid defending skills like Aerial defender/Defensive Wall/penalty kick or even without those specialities..u just need they are good in defensive and physical attributes
Strikers: Good with one-on-one scorer/free kick specialist/corner kick or penalty kick.. attacking and physical attrs are very important...not defending skill
Goalkeepers: best with penalty stopper or one on one stopper...physical n defending skill are needed..attacking is not important...