John Perricone, whose Only Baseball Matters, is an essential daily read, had an article yesterday about defensive efficiency. Though it is still early, we know the Yankees are not a good defensive team. And while their D hasn't hurt the Yanks yet, according to John, it will sooner or later.
..Even though their defense is looking a bit suspect, their pitchers have been stingy, so stingy that they are carrying the defensive load, although with a EQA of .310, (best in baseball, by a good margin) they can win giving up 6 runs per game or more right now. That's not likely to continue, nor are they likely to go through the season allowing just 40 home runs either...The Yankees will come back to the pack over the next month or so, and they may even slip more than that.
With shoddy defense and a suspect bullpen, the Yankee bats are going to have to keep booming, and the starting pitching is going to have to stay sharp, for the Bombers to fend off the Red Sox over the next six weeks.