That's what comes up when you Google "QB winning percentage"They keep stats “as a starter”. And honestly, I can find the same stats for other positions in the same 12 seconds. All you need to know are the years a certain player was on a team. In fact, Google “QB stats” and tell me if W/L even comes up.
That doesn’t mean that’s the teams record “because” they were the starter. It means that’s the teams record when the QB happens to be the starter.
Not every win should be attributed to the QB, just like every loss shouldn’t be. But you already know that.
Pretty good list.