CANTON, Ohio — Even to people in the Florida Keys who don’t follow football, the name Jimmy Johnson is well known.

It’s one of the first names that greets motorists heading south on U.S.1 in Key Largo, enshrined in large, yellow letters on the sign for Jimmy Johnson’s Big Chill. But Johnson is bigger than the Keys. In fact, he’s bigger than most of the National Football League. His eye for evaluating talent, and finding the right components of a team, have extended beyond the world of football.