I saw Armstead in a TV game in my area-Arkansas. He was left uncovered to his left on the line of scrimmage making him an eligible receiver. At the snap he faded out toward the sideline and back a few yards and received the pass from the QB and rambled down the field for 8-12 yards. I jumped out of my chair and shouted that was a screen pass to an Offensive Tackle. I have never seen that before. I didn't know who he was before that play but paid attention to him for the rest of the game. He would pull, either behind the line of scrimmage or just behind the defensive lineman, to his right and found a target most times to help spring the runner on a run around the right side. Was I impressed, you bet.
I still can't get over a screen pass to an Offensive tackle. If I was a coach,with his athleticism, I would try him on short yardage runs. I got to believe he would be very very versatile. Maybe even a tight end, with his speed, in a pinch.