Take your time. If and when you go over the history of Yost again, I will be curious about any mention of scheme, especially if such also mentioned McGugin.  If it gives accounts of either one punting, that too adds a certain color to their story. Given their emphasis on it, one has to get a kick (pun(t) not intended) out of Yost teaching his boys to punt or McGugin booming punts in an all-star game in his 7th year at Vandy. Would you happen to know if Yost ran the same schemes at his various jobs before Michigan? I would assume so and have a few other tenuous reasons to think so.