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...team in the U.S. professional National Football League (NFL). Halas revolutionized American football strategy in the late 1930s when he, along with assistant coach Clark Shaughnessy,
Learn about this topic in these articles:
...team in the U.S. professional National Football League (NFL). Halas revolutionized American football strategy in the late 1930s when he, along with assistant coach Clark Shaughnessy, revived the T formation and added to it the “man in motion” (a player moving prior to the start of a play).
quarterback in American professional gridiron football who, during his 12