That's a nice bonus when the "other guy" turns out to have coached a team to an NFL title.
Even though I have a copy of a book, really a pamphlet about football, by Potsy from the 30s, I never specifically researched him. The only reason I wasn't surprised to see him at Illinois was because in Red Grange's bio, he actually says "On the football field I tried my darnedest to be like my two special heroes, All Americans Bart Macomber and Potsy Clark of Illinois."