New York Jet fans have grown accustomed to big guarantees over the last few years. Namely, Rex Ryan’s press conference promises about his team heading to the Super Bowl all of the last three years. None of them have come true however. It seems now that a guarantee is only a PR move, and usually a negative one, brazened confidence that lacks character and depth. But back in the Jets’ heyday, when a kid named “Broadway Joe” helmed the most important position in football, guarantees weren’t for show; they were for real.