There's no way! No way that you can be aware of ..."all things" in "all facets" of the game. You just cannot be that prepared for any game! A
defensive strategy is not an exact science, no matter how hard or long you study film prior to the game.
Besides, Andy Reid does not have total play calling responsibility ever since Marty Mornhinweg became the assistant Head Coach/Offensive Coordinator.
But I do think it is possible to "over-read" strategy on both sides of the ball. I also think that a team can rely too much on what the other team is doing/is capable of doing and not focus on what their own team's limitations are.
Don't worry, that's what the coaches get paid the big bucks for ...it will all come out in the "Xs and Os!"