1. Calls dictate how the game will be played
2. Focus on key periods during the game
3. Focus on position and angle
4. Prevent violence by preventing frustration
5. Stamp out brutal acts
6. Dissent cannot be tolerated
7. Get 10 yards on free kicks
8. Use teamwork with assistant referees and 4th
9. Read the body language of players
10. Protect skillful play
11. Do not rely on cards as the only measure of control

 Click on 11  Commandments of Officiating to see how referees use them.