Nonsense. If you count Kelly's two years in the USFL the passing yardage difference shrinks, particular with Tarkenton. Marino threw for a lot more yards but had a lower completion percentage, as did Tark. Both had lower a QB rating than Jimbo. And for all his yards passing, Marino took the Dolphins nowhere except for one year. You have to go by stats, impact and effectiveness. Those are three great quarterbacks but there shouldn't be a huge amount of distance between them.