1. Jason Kelce: Lines up at center. One of the most athletic offensive linemen in the league. Outstanding playing speed/quickness. Plays with a burst. Scheme caters to his ability. Is asked to pull when uncovered to help on the second level. Shows lateral range. Can get to the outside in a hurry. Is able to adjust in space quickly. Outstanding body control and balance. Best when he can block on the angles. Knows how to position his body between the ball carrier and defender. Footwork helps for his pass sets. Gets away from the line quickly. If he has a weakness, he's not the strongest blocker. Powerful defenders can break him down on his pass set.