Players in football team are divided into key players, main players, characteristic players and bench players, among them, each has different status with different roles and functions. If a team wants to get achievement, the couch must deal well with the relationships among roles and transformations from each other. In order to make the team efficient up to the extreme in the game and move forward, we should draw out the potential of every player and bring their superiority into full play with stimulating their initiatives.