I don't find the comparison to the Yankees to be a fair one.
You're giving the Red Sox credit for Pedroia, Youkilis, Lester, Buchholz, Bard, Ellsbury, Papelbon, Delcarman, and Lowrie.
Fair enough.
But then, at the same time you're only going to give the Yankees credit for Hughes and Joba? How about Melky Cabrera, Brett Gardner, Robinson Cano, Phil Coke, and David Robertson. Most of those guys haven't been as successful as the Red Sox you've named, but the Yankees have entrusted important roles to them, so the comparison is a legitimate one.