it is not what i believe. i've seen the ref at sc teach a whole plethora of strategy between games to make both sides of the walk-on competent. it still occurred over the course of a day while he reffed. moreover, if what you want is just a walk on wednesday, then isn't it just another beginner walk-on, which is already being done at large fields? all you gotta do is make sure refs teach during the day like i mentioned, and some already do. what then, would draw a crowd to an additional paid stand-alone lesson on top of this existing setup, and what can be taught there that cannot be taught in a walk-on game?