I didn't see that. I saw poor play calling compounded by a loser mentality.
Look at Jacksonville's play choice on offense from the first half the second half - first half, they took what was given and sustained drives. Second half they were pressing for chunk plays. They played like they couldn't believe they had a lead. It was one of the worst efforts I've ever seen.
They may be very good in this respect, but I am not buying that the Eagles conditioning methodology is that far ahead of the rest of the NFL. oooh, biometrics, so innovative!... but biometrics is so fucking old, I learned about it in a couple sports video games in the early '90s. Chip Kelly sure didn't invent it, there's no way that other teams aren't already doing something similar. In the NFL, a team with superior conditioning may be able to swing a game in their favor later in the fourth quarter... but not during halftime when everyone is resting. There just isn't that much difference from the best team to the worst.
And now that I've crapped on the Jaguars, its a safe bet they'll get their shit together in time to play the Giants. Damn it.