okay well basically its quite an attacking formation, all of the midfield are on the attacking side of football, however, the 2 central midfielders are responsible for different duties, one is responsible for the forward runs and so on, whereas the other is required as a backbone, being a solid tackler with creative freedom
the wingbacks are encouraged to go on forward runs, hopefully ending up with a direct cross into the box, so wingbacks with singer qualities would be useful... the 2 centrebacks are the exact opposite, they tend to stay back defensively and clear with direct passing
both wingers are required to go on forwards run with the ball and tend to do the basic job of a winger, skin the wingbacks and get the ball into the box, no messing about..
then we have the 2 strikers, pace is a necessity... both are once again encouraged to go on forward runs, whereas only 1 is enouraged to run with the ball, so "winger" style attributes could be useful...
here is a screen of the overall team instruction
http://img174.imageshack.us/my.php?image=teamsy8.jpg