PHILADELPHIA (AP) -- Teams that play the Philadelphia Eagles this season might want to spend extra time doing cardio work.
Chip Kelly has only shown flashes of his up-tempo offense in the first two preseason games and defenses already seem tired and confused while the Eagles are moving the ball with ease.
Just wait until the games count.
"I think we can go a lot faster," quarterback Michael Vick said. "I see what it does to a defense and the concepts and things that we do really puts this team in a position to succeed, but it has to be done right."
The combination of Kelly's faster pace with a new, balanced attack in which the Eagles run the ball far more than they ever did under Andy Reid is creating problems for opponents.
Philadelphia is 1-1 in the preseason, defeating Carolina, 14-9, last Thursday.