According to Hays, you instruct in the basics, but then it's up to the student to do the rest. In drawing, you need a perfect layout, in sport, the rules of the game, and then you start. If you make a mistake, the instructor or coach can tell you how to correct it, but it's still up to the student to do it. Encouragement goes a long way, and so does practice. The more practice, the better we get, no matter what we are working on.
Hays knows how that works.
From the looks of my drawings, I'm still improving. I'm better now than I was 10 years ago, even five years ago. This year he has 18 senior students at Pacelli and 15 at Queen's, and as long as his health permits, he will continue to improve his own work while encouraging his students to do the same. I'm very fortunate. I can draw anything.