Waist flag football last attack timeout a player can play any position

What are the positions in American football
1) Position in the team theoretically, a player can play any position under the condition of abiding by the rules. Therefore, the rules allow each team to have "free players" in each game, who can run in any direction. In the American waist flag football game, which pays great attention to technique and tactics, a player with special characteristics in a certain positionWhat are the positions of those players in football
First, American football is usually divided into three groups: offensive group, defense group and special team. Introduce the positions of the players in each group. Attack group: quarterback (code QB), tight end (code TE), wide receiver
Information about a sport. Just one of them... Brother and sister, please answer
In early December of 1891, Dr. James Naismith, a physical education teacher of the YMCA International Training School (later Springfield College) in Springfield, Massachusetts, United States, played rugby to solve the outdoor cold in winter