Since the playmaker is the best passer in the team, it's a good idea to let him carry the puck. However, often when you gain controll of the puck it's with a defender. If you let the D pass the puck up to the center, he might end up in a tight situation. Therefore it's a good idea to let the center circle behind the net to pick up the puck. This can be done by creating a play that starts when the D picks up the puck behind net.