Boston Red Sox defeat Arizona Diamondbacks, 4-3

PHOENIX -- When Josh Byrnes, formerly Theo Epstein's chief lieutenant, became general manager of the Arizona Diamondbacks, he inherited a team loaded with young talent.

Byrnes has since added 43-year-old Randy Johnson, who tonight faces Daisuke Matsuzaka, but the Diamondbacks are the fourth-youngest team in the majors (average age: 27.6 years ). They're cheap, too. Byrnes's Opening Day payroll was just over $52 million, almost two-thirds less than the $143 million-plus pay...