It's hard out there for an NFL official. Even if you're Ed "Guns" Hochuli. Even if the current lockout gets resolved.
So, with the NFL's official refs and umps in the spotlight -- and likely to retain it if and when they return to work -- the designers and researchers at InfographicWorld.com offer a look inside one of sports' most visible part-time jobs.
Who are the most noteworthy men (and now, women) to wear the stripes? What does it take to do so? How did the league's current ref setup come about? All questions are answered with the following graphic:
Infographic World is a data visualization company, working with companies to create informative visual stories. To have an infographic created, you can email email@example.com.