Many coaches want to encourage their teams to keep better possession of the ball.
So why not play a version of the game that actually rewards possession?
The app allows you to assign points for goals and possession and then keep count of them during a game by holding down or tapping on buttons.
So in the end you get a final score that reflects not just goals but also possession. An interesting game in itself but certainly one that will get a team to work out how to keep the ball.
Example:
Team A plays Team B.
Apps set so that one goal gets one point and every extra 5% of possession also gets one point.
Team A scores one goal and Team B scores 4. Team A has 60% of possession.
Final score is 5-4 to Team A.