The secrets of Chip Kelly's offense are still being discovered by the NFL's top minds, but the Eagles sideline made a critical mistake when they tipped their hand on national TV.
Rocky reveals Philadelphia Eagles playcalling secrets
Training camp now includes running up library steps.
James Dator has been covering a wide range of sports for SB Nation for over a decade, with a special focus on the NFL.
"Rocky" is obviously the play call where Nick Foles throws a touchdown. Now it's easy to understand how he joined the league's best with his seven last week.
“Cheesesteak, Liberty Bell... Rocky... Rocky... hike”
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