The role of the left half forward who wears the number 12 jersey is to build up attacks and to feed the ball to the full forward line and also taking shots on goal or above the bar when opportunities present themselves.
The role of the centre forward (often called "centre half forward") who wears the number 11 jersey, is to build up attacks and feed the ball to the full forward line. The centre half forward is responsible for taking shots on goal and above the bar when opportunities present themselves.