They probably didn't even have college way back when Fran Tarkenton played. But he did pretty good!

Actually, though these stats seem to show a stronger relationship to success than others, there are way too many other factors to consider.

Big Ben had The Bus, a running game, a coach that restrained him,a calmness to play within the system,and a pretty good O-Line.
He struggled without The Bus. And he won't likely do very well this coming season again.

Nice to make predictions based on stats. I mean that's what gamblers do.

I suspect there is a stronger predictive value between qb performance and O-Line play.

I'm just too busy/lazy right now to look it up.

Like, what is the completion percentage of qb's on teams that give up the fewest sacks. etc. etc.