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Luck - 255 yards, five touchdowns
Manning - 62 yards
One thing that Luck can do that Manning has never been able to do is scramble out of the pocket.
Luck was amazing this year at escaping pressure and running down the field. His speed is very surprising, as he is not a small guy. In fact, he actually weighs more than Manning.
Manning has always been a pocket passer, plain and simple. He has never been the guy to make amazing plays with his feet. Colts fans now have a quarterback that can do just that.
While other young, fleet-footed quarterbacks began using the read-option this year, Luck has been just fine running without it. The read option is risky, especially when the quarterback gets hit. Robert Griffin III proved that exposing yourself to those kinds of hits consistently is not a good thing.
This extra dimension that Manning didn't have will be a valuable asset for Luck during his career. Defenses will have to begin adjusting to it, and that will leave more openings in the passing game.