No he is advocating development of ball control in tight spaces via repetition of coerver style soccer drills from simple to increasing complexity. Doing all those drills takes so much time and effort, Byers is saying only a parent (right now dads but in the future moms too) can take the time to train young soccer players. This is basically what I did with my son. It’s a great way to develop ball control but my kid (and from what I have seen most kids) get bored of doing these drills. Also, I was not a good enough player or trainer to go beyond the most basic of these coerver drills, or show my kid how to translate the skills he acquired from coerver drills to actual play. However, nobody else was doing this and it helped him reach a hi level of play before he hit the wall of where my limited coaching abilities could take him.