Stafford was drafted in 2009, to the Detroit Lions aged 21. He won his first playoff game in 2022, with the Los Angeles Rams, aged 33. It took him 13 years.
Peyton Manning, often referred to as one of the best qbs in NFL history didnโt even get his first playoff win until his 6th year in the NFL.
Dan Marino won 8 playoff games, and no super bowl despite leading a generational offense at his time, is still regarded as one of the best all time
Football is the ultimate team sport, literally. There have been amazing QBs whose teams have struggled in the postseason, and people fail to see and realize this.