I'll go back and watch the coaches film, I'm curious. I was only halfway paying attention by that point yesterday. My point is that if you were to just run every WR in the NFL in a straight line for 40-50 yards AT woud finish in the bottom half. I may be wrong, but flat out speed was never his game anyway. He's a route technician who has great quickness and lateral agility and burst. I hope he can teach XL how to catch!
EDIT - upon watching the replay it looks to me like the safety and CB were surprised, both got late breaks. Coker ran an out and AT gave a very subtle move. I would bet they were expecting Coker to go long and AT run an in or a comeback. If you look at their stances, body position and eyes, it sure looks like they were shocked that AT went deep.