What are the positions in the 7v7 game?

What positions are the kids playing in the 7v7 game and what are their roles? How will this benefit them as they move on to 11v11? Is there any carryover?

At times it can look like a mess on the field as the fields that our 7v7 teams play on are not super big. Also partly as a result of the smaller space the bigger, more athletic players often take over and seem like they are all over the field. We don't want to discourage those players from trying to find the game or ball wherever it may be, but we do want to start to encourage them to learn to work together with their teammates and the team to work together as a whole group.

In order to do that, the players need to start understanding their roles within the team based on what position they are playing. They will all probably play a lot of different positions during the next few years as them experiencing multiple positions is healthy and positive for their development as a complete player that is capable of playing multiple positions.