Football has taken the place of baseball as America's national pastime, and that has prompted many fans and viewers to ask: who is the best to ever play? This discussion almost always leads to quarterbacks, and among that select group, Tom Brady, Drew Brees, Aaron Rodgers, and Joe Montana stand above the rest. Using statistical analysis by presenting and explaining how stats are accumulated and calculated, this book combines core math skills with the fast-moving world of sports to contextualize today's superstars among the all-time greats.