If you went through the offense, you'd realize that almost everyone on this team missed serious time in 2010, had some kind of injury they fought through, or are adjusting to a new team. Ortiz, McDonald, and Drew are the only three that don't fall in those categories, and yes, that includes the bench. Throw in a pile of elite lefties like Price, Sabathia, Gonzalez, Anderson, Wilson, and it certainly makes sense.
And the pitching staff? They have a new pitching coach, and a new catcher. Buchholz had a new contract to worry about.
It was a perfect storm for a putrid start. They're winning now, so get over it.