Book excerpt: Every generation or so, a team comes along whose march toward victory is so improbable that you can't help but root them along. The 1950 Philadelphia Phillies was that kind of team; young and spirited, the Whiz Kids played a raw, emotional brand of baseball, nipping the Brooklyn Dodgers on the final day of the season to bring the National League's perennial doormat its first title in 35 years. Hall-of-Fame member Robin Roberts, the team's ace starter, peppers his recollections with snippets of oral history from his teammates to produce a book as lively as the team itself.--