Oh, I absolutely agree about the back end of the rotation. The reason that I listed Hughes, Chamberlain, and Giambi is that they are going to be new to the team.
As for the point about the road, I agree that they haven't shown the ability to play well on the road, however, some of that has to be attributed to the fact that they simply weren't playing well in the first half. Although the last month doesn't necessarily reflect how good they really are (because of the competition they've faced), I think it's fair to say that if they continue to play good baseball they will play better on the road. But I also agree that the true test for this team hasn't come yet.
EDIT: I also think that another good sign for the Yankees, is that if they can continue to hang around through the rest of August, their September schedule is considerably easier. As it did in 2005, the fact that they won't be playing playoff contenders down the stretch should help (although I understand that teams like the Blue Jays and Orioles have proven to be quite capable this year).