I still think the Eagles are going to be tough to beat. When McNabb went down two years ago, the team did quite well for itself. Moreover, I don't think McNabb's injury is so serious that it will severely hamper him throughout the season.
I am unsure what to think about the Giants. I definately feel that they are beatable, but Manning looks like a much better quarterback than he did last season.
The Cowboys look better than most would have expected, but, obviously, they are beatable.
The NFC East may indeed be up for grabs, but I think the Eagles will likely snatch the title once again.
