Because of articles like this:
Baseball Prospectus’ Playoff Odds Report, checked daily by baseball diehards this time of year, lists the Yankees with just a 8.87 percent chance of reaching the postseason and a 1.20 percent chance at winning the division. That’s far lower than the Mets’ chances (43.1 percent) and those of long shots like the Cardinals and Marlins. Put it this way: The Rockies, who are fourteen games under .500, have a better chance of winning their division than the Yankees. Or, in other terms, according to bookmaker Paddy Power, the odds of the Yankees winning the American League East are nearly equal to those of John Edwards being picked by Barack Obama as his vice-president.
Every time someone writes off the Yankees, Derek Jeter’s intangibles grow another inch.