That's not teaching. The PC will tell you how to do not just order you to do it until you figure it out. But since the dads have never thrown a pitch and will be perpetual outsiders, then that is all they have to offer. That's why I have an assistant who was actually a pitcher.
Because that in and of itself makes someone qualified to instruct pitchers. Just having been there. I was born in a hospital so I guess that makes me qualified to deliver babies.