I do not think anyone should get on the player for achieving this. A high school kid just wants to play and do well. Ten goals by any player is on the coach. After the fourth or fifth or, at most, sixth goal, the coach should get the other players involved. Not work on getting them involve, get them involved. Tell the scorer to pass it, set up scores, or be a decoy and then lay it back for someone else. Having only one great player is a guaranteed recipe for a 10-0 drubbing of themselves down the road. Having one great player and several good ones gives a team a much better chance of competing when the competition is better.