System QB?
There have been 41 playoff games where a quarterback has thrown for 50+ attempts, resulting in a win-loss record of 9-32; that's a 22% winning rate. Tom Brady is responsible for eight of those games; his record is a sparkling 6-2. All other quarterbacks COMBINED have gone 3-30. Read that again: Brady is responsible for two thirds of the victories *in league history*. No other quarterback has been asked to put the team on his back like Brady, and no one has had the success that he has been able to achieve. Jim Kelly is the only other quarterback to have 3 or more playoff games with 50+ attempts, and Kelly was 0-3 in those games. There have been five other quarterbacks with multiple playoff games with 50+ attempts: Kelly (3), Drew Brees(2), Jeff George (2), Dan Marino (2), and Warren Moon (2). Their collective record is 0-11. (updated Jan 21)