I've been reading the back and forth about the greatest QUARTERBACK to ever play the game. The greatest QUARTERBACK to EVER play the game is Dan Marino, your theory of winning the "big game" to make or break a players' validity is unsubstantiated. Keeping in your theory, every team in the NFL falls short every year of being great, yes even the Superbowl winners. Since the Miami Dolphins are the only team in the history of the NFL to ever post a perfect season, everything else is subpar. The 49ers, Steelers, Patriots, Cowboys are not any better than the 0-4 Buffalo Bills. Now, keeping with your theory still, since Bob Griese played QB in the Superbowl, not Earl Morrall, technically, following your theory (and the NFL Network's along with everyone else of the "ring" to validate opinion) he, and he alone is the greatest QB ever.....according to your theory. Now as much as every Dolfan loved(s) Bob Griese he doesn't really compare to Marino. Hmmmm.... I think the ring for validation is suspect at best. Really since we are comparing success as the measurement for greatness....what is greater than perfection? You mention how a QB takes his team to the next level to win....well I remember a 51-45 loss to the Jets when Marino was at the helm, however, I don't remember him playing defense and giving up 51 points. His natural skill, and intelligence place him at the top of the QB position. Remember players are inducted into the Hall-of-Fame because of what THEY did, not what their teams successes/failures were.