Some tips: Striker must try to position out of sight of the defender. If the ball is on the right, then position LEFT of the defender, that way the defender perhaps cannot see the ball AND the striker at the same time. Therefore, sometimes the first run or position can be AWAY from the ball getting on the BLIND SIDE of the marking defender..
Also, in most instances the striker is Turned facing towards goal, the defender is marking facing away from goal. Therefore, the striker has ONE motion to make, the DEFENDER has two motions, first a turn, then recover back.