Kelly's coaching style is predicated on speed -- both in games and practice. If you're a player who likes to use team activities to work yourself into shape, this is not the place for you.
"I've never played in an offense where the tempo was so high," McCoy went on. "There's so many plays, so fast ... as soon as you're done, you've got to be ready for the next play."
"This offense, we're shifting, moving. As soon as you get tackled, there's no celebrations after the play, it's strictly let's get the next play and let's go," he said. "I want to say by the second or third quarter, teams will be tired, as you've seen (with) Oregon. That's how they really won a lot of their games ... as a defense, you don't get a chance to really adjust, because you're moving so much."
There's no denying something different is going on in Philadelphia. The players might be exhausted, but they appear to be buying in.
Follow Dan Hanzus on Twitter @DanHanzus.