Marino - .601 winning pct Brees - .586 winning pct Incorrect. Yes, Brees won a Super Bowl and has had more postseason success than Marino, but my point is that Brees leads his team to more points in a game just 58% of the time, which is an extremely low mark compared to actual all-time great QBs, many of whom also didn’t field good defenses. It suggests (as does empirical common sense) that a lot of his numbers are inflated by empty yardage and soft zone coverages trading clock time for gimme touchdowns. I get that Brees has not had a good defense a lot of seasons, but those numbers tend to smooth out, or at least stop becoming massive outliers, over a very long career. In addition, playing a lot of dome and warm weather games should make your defenses look worse just as it boosts your offense. So, taking into account that Quarterback X is Brees’s opponent, and Brees has faced Quarterback X 278 times, with each of them playing in the same conditions, shouldn’t an all-time great QB win a lot more often?