My hope is that the Eagles organization has the same view as this fan site about the Bills (same for all the other teams in the NFL), but I highly doubt it.
I note this as the other teams know much better than any fan how good the Bills are.
The reason for this is as the original poster alluded the Bills were a play or two (or a call or two) away from the Super Bowl last year (and possibly the last four years).
As such, the changes the Bills made this year to address the two main areas of concern, namely the defensive line and some wide receivers that are good at man-to-man separation, could very likely make the Bills the team to beat in the NFL.