German coach Heino Knuf explaining the indoor drag push technique
Heino Knuf is one of the most detail-oriented coaches in the world. Here you can see him explaining how to execute the indoor drag push to young player with a method that focus on the upper body rotation and ball drag.
First, he explains the rotation of the upper body without the stick:
[adpress campaign=5]
Later on the players are allowed to use their stick to transfer what was learnt in the previous step: