How do you guys beat World Class ai?

For me professional is too easy with me scoring 2 to 4 goals per match, but then world class is way to hard. the ai keeps making runs behind me, and even when ai mark them they still manage to receive the pass and score. But then when I try to through ball the defenders easily reclaim the ball even after I am 30 miles ahead of them. Anybody have any tips on how to pass and defend in this game?