Player Profiles
Players should have profiles with their location and position so that if I was looking for say a striker for a specific match then I can message that person directly asking if they fancied playing for my team.
Also, after the match I would have the opportunity to rate their performance as a useful indicator for future people of their ability so they will know if the player in question will be good enough to suit their needs.
To assist this function it would be great if there was a search facility to find specific positions in my area and also filter by ratings.
Lastly, Players who play a position should be able to advertise their services as well...