That's impressive.
Along a similar vein, there was an 11-year-old travel team a few years ago that produced five major leaguers: www.yahoo.com/news/same-youth-...-041000708--mlb.html
Everyone knows Strasburg and Leake (who was a catcher back then), but Brett Bochy, Thomas Neal, and Xavier Scruggs have all also played in the majors. Half the team made the majors!!