Back in the day, it was less common for quarterbacks to excel past their mid 30’s. Sure, there was Warren Moon, Vinny Testaverde, Brett Favre, Kurt Warner, and John Elway. But that short list is dwarfed by a painfully longer one filled with Hall of Fame quarterbacks who seemed to crap out well short the 40 year marker.
Even these all time greats experienced precipitous drop offs in their mid to late 30’s. For Roger Staubach, Steve Young and Fran Tarkenton, it came at 37. For Bart Starr, Jim Kelly, Dan Marino and Dan Fouts, 36.