In a sport, especially basketball, where the winning team is determined by the highest common points amongst the players. Traditionally the team with the highest total points wins the game. However, with highest common points each and every player or position has to score a point to count towards the total score. The purpose being that every member makes sure that everyone gets a chance to score so that no single player hogs all the points.
Player A score 7 points, Player B scores 2 points, and Player C score 10 points. So the total highest common points for the team is 2 points. Player A and C should wait give more chances to Player B, and Player B should try more on his/her own to score more points for the team to win with the most highest common points.