Sonsaz,
Ace and I speak from 1st hand experience. Google Gary Lavelle and you will understand better why GCA has had such success. Gary is an outstanding role model who relates extremely well with his players. He has immediate credibility with the kids and knows how to get the most out of his players. He without a doubt, knows how to manage a game. Gary has developed outstanding players, especially pitchers, year after year.
Ace is correct in noting that GCA won back-to-back-to-back state championships, however GCA has won many more than 3 VISSA state championships. If your son is a pitcher, there is no better pitching coach in the state. Gary's pitching instruction certainly contributes to why so many kids transfer in to play for him.