The 10- to 12-year-olds use a 3-4-3 playing system, also known as the "Ajax System." The defense forms a "back three;" the midfield consists of two central midfielders and two at the inside left and right positions. The attack combines a center forward with two classic outside forwards, which is one more indication of how important the wing attack for player development.
Ordinarily, players do not have to make any special adjustments for the back four playing system (4-4-2/4-2-4) used by the 12- to 14-year olds, since both systems build on each other. The outside forwards are actually best prepared to take over the outside defender positions in the back four, since they have a strong offensive drive as well as the ability to kick crosses.
To make little victories like these possible, you have to commit to a long-term training program.
Training program for one week:
Drills 1, 2, 3, 4