I wanted to bring this article to your attention about son's teammate.

http://www.news-leader.com/article/20100503/BLOGS01/100503011/-1/blogs01/Cards+need+Gorgen+to+be+today+s+stopper

Do you need velocity at that level to get people out, no, but you better have a devastating off speed to keep batters looking foolish

BTW, he won the game today, his 5th win in 5 starts, leading the Texas League.