Not to burst your bubble but look who the Eagles have beaten the past few weeks:
A horrible Oakland team
A Packer team without Aaron Rogers(no way the Eagles win that game if Rogers is healthy)
A terrible Redskin team
The Eagles defense is 2nd to last in total yards and passing yards. There wins in total haven't been against anyone. They have Arizona(6-4) and Detroit(6-4) in the next 2 weeks at home. Neither team is a pushover. If I were an Eagle fan I'd shudder at the thought of Stafford throwing against that secondary.
Yards given up doesn't mean anything unless they score and their Red zone defense is pretty good. I don't care if you move 80 yards a possession but unless you score it doesn't matter.