Josh Allen and Jim Kelly both earned spots on SB Nation’s expert panel ranking of the 30 greatest quarterbacks in NFL history.

Some quarterbacks rely on their arms, others rely on their legs, and then there are the ones who win games with their brains. These quarterbacks didn’t just play the game—they studied it, learned it inside and out,

While a Super Bowl ring is the cherry on top of a stellar career, there are plenty of greats throughout NFL history who could never quite get it done in the big game. Whether they had to compete against a slew of elite Hall-of-Fame quarterbacks on their way to a title for most of their career or just had untimely,