In a 4-1-2-1-2 narrow diamond, each position has specific roles and responsibilities. The goalkeeper's primary responsibility is to prevent goals and distribute the ball to teammates. The fullbacks are responsible for providing width in the attack while also defending the flanks. The central defenders are responsible for marking opposing forwards and winning aerial duels. The holding midfielder is responsible for breaking up opposing attacks and distributing the ball to teammates. The central midfielders are responsible for controlling the tempo of the game and providing support to both the defense and attack. The attacking midfielder is responsible for creating scoring opportunities for the forwards, while the forwards are responsible for scoring goals.