No defensive man in pro football has more ground to cover than the corner linebacker. Against runs to the inside, he closes down through territory A. On passes, he may be required to defend against hooks to the middle or sideline throws in territory B. He may have to turn a wide run back to the middle in territory C. And on a blitz, he must penetrate through territory D to reach passer.
Covering same areas diagramed above, the Packers' Dan Currie is practically all over the field. Against inside run (A) he breaks to right to help contain play. Against pass into hooking area or to sideline (B) he backpedals furiously to cut off short throw or cover halfback all the way downfield on a pass. Against wide sweep (C) he fights to the outside, trying to force runner in, and when blitz (D) against passer is called, he takes outside route at full speed, hoping to hurry or drop quarterback.