PHILADELPHIA -- The first three games of the regular season are fraught with unknown peril for defensive coaches. They study opponents’ preseason tape without knowing what it means. Is that the offensive scheme to expect? Is that how they plan to use a particular player or are they playing possum? You can’t be sure, so you prepare and plan as best you can. “Like last year, when I kept saying the Washington (season-opening) game would show us our starting point, it’s the same thing this year with Jacksonville,” Philadelphia Eagles defensive coordinator Bill Davis said.via - NFL Nation