It can be improved by motivating the team, by motivating the players. We could tell them that, Unity is strength. We should be unite, in order to win the match. If\f the reason was because of their fight within the team, I will say them, if we fight with ourselves, then we couldn't bag the first prize. Moreover, hard work, regular practice, dedication, and passion will make to succeed in a goal. So, I will tell them to practice well, and be unite as before, and advice them to bring a good name and fame to the school. Thus, I will motivate them to improve them.
Hope this will help you.