American football positions American football positions In American football each team has 11 players on the field at one time. The specific role that a player takes on the field is called his position. Under the modern rules of American football, teams are allowed unlimited substitutions; that is, teams may change any number of players after any play. This has resulted in the development of three "platoons" of players: the offense (the team with the ball, which is trying to score), the defense (the team trying to prevent the other team from scoring, and to take the ball from them), and the special
John Field (American football) John Field (American football) John Field (September 26, 1886 – May 3, 1979) was an American football player and coach. Field played college football for Yale University from 1908 to 1910 and was captain of Yale's football team. He also served as the head coach of the 1911 Yale football team. He later worked for more than 60 years as manufacturer of corsets and lingerie. Field was born in Viroqua, Wisconsin, in 1886. His father, Walter S. Field (born October 1856), was a Wisconsin native and an attorney. His mother, Emma (Tourjee) Field (born October 1858), was also a Wisconsin