<p>Since this is at a school, I would bet that you need to go through either the administration or the coach, rather than a parent. There are issues of photographing underage minors without the school being aware.<br>
If you want to do all of the team photos, your project management is going to be way more important that your photography skills. Think about how you will market, process orders and manage images.<br>
I would suggest setting up packages rather than just charging per print.<br>
Zenfolio is a good site for selling - it allows instant digital downloads.<br>
FYI - Lifetouch charges around $30 per digital file.</p>