There are some players in the National Football League that give defensive coordinators headaches, even before they take the field.
These are players that are multidimensional and can pretty much do anything you ask of them. They are not limited to just one position on the football field.
They also don't have to be considered among the best offensive players in the National Football League.
Instead, you are going to see a combination of proven veterans and youngsters with a whole heck a lot to prove. Both of the top rookie quarterbacks, Andrew Luck and Robert Griffin III, will find themselves on this list, but some veterans you might think belong will be left off.
Such is the nature of a list like this.