If you're a serious bowler, all eight should be well known names. If you're a bowling fan, you probably have heard of at least one of the eight -- Andrew Koff -- because of all he has done, including in PBA competition. They are the four boys and four girls named to Junior Team USA for the 2010 World Tenpin Bowling Association World Youth Championships in Helsinki, Finland, July 24-Aug. 1, the United...