Paul and I still don't know much about lacrosse. We've kind of figured out that there are three types of positions. They rotate all the kids in and out of them during each game, so Reid gets a chance to play every spot.
However, Reid isn't totally clear on what he's supposed to be doing (and neither are we, so we can't really help him out). But he seems to have fun running back and forth, even if it's always the older kids who end up getting the goals.
I think that if he decides to play again next Spring, he'll fare much better because he'll have a season under his belt, not to mention having a little more size and maturity.