There are a number of things to be looked after on the day of the match. The host must ensure that:
Often it is the team captain who is responsible for many of the tasks of organising the team. The captain is also responsible for the tactical and ethical performance of the team. In some sports, a coach or manager may play a significant role in determining the team tactics, but once the game is in progress there is a limit to what a non-playing official can contribute. The captain can lead by example and may have to make important tactical decisions during the match.
Finally, if the team is successful, it is the captain who traditionally collects the trophy and makes the speech of thanks and appreciation, which makes it all seem worthwhile!
Source: runningsports -Quick Guides - Organising fixtures and competitions.