The only person that I think may appeal less to 17 year old kids than Gruden may be Belichick haha. Gruden has a lot of love for the game but his last 5 years in the NFL he was 31-38 and was widely criticized for being way too conservative and way too predictable with almost no play action and a lot of running. Belichick's last year in the NFL he, as the GOAT coach, completely lost his locker room.