When people criticize the way the Yankees team is made up, they often talk about the aging players on the roster. That's something GM Brian Cashman has tried to address over the past year-and-a-half or so, but it obviously is still a work in progress.
Here's a breakdown of the Yankees' current roster:
17 players -- age 30+
8 players -- age 29-
Of the players who are at least 30 years old, six are at least 35 (and Andy Pettitte will turn 35 June 15th). They are Mike Mussina, Mike Myers, Mariano Rivera, Ron Villone, Jason Giambi and Jorge Posada. Is age a factor or not?
Mussina has had an up-and-down season thus far, broken up by a hamstring strain.
Myers, while he has been criticized by some, has a 3.38 ERA (career ERA is 4.19). A better stat for relievers is WHIP (walks plus hits per inning pitched). His this year is 1.31. In his career it is 1.43. One thing he has not done much of, though, is stike people out. He is striking out an average of 2.53 hitters per nine innings, while his career average is 7.22 (though not quite that high the past several years).
Rivera, as everyone knows, has struggled. He has just three saves, an amazing stat (and obviously in large part b/c the team has very few wins). His lowest season total in a healthy year since 1997 is 34.
Ron Villone just joined the team, so hasn't really been a factor.
Giambi had a great April (.322 average), four homers, 17 RBIs) but has had a horrible May. Aside from the steroid stuff, he is hitting .148 with two RBIs, both on solo home runs. Ouch.
Posada, on the flip side, is arguably performing at his highest level ever. His .372 average leads the American League. He has six homers and 28 RBIs, and has managed working with an extremely young pitching staff.
But one could certainly say that the slides of Giambi, Rivera, Johnny Damon, Bobby Abreu, etc. could be age-related. That's probably not true of all of them, but most likely some.