DEPTH CHARTS FEATURE - What Ourlads NFL Scouting Services said before DEREK RIVERS made the New England Patriots' depth chart: Youngstown State, 6041 250 4.62. Three-year starter from Kinston, NC. Three-time first-team All- Missouri Valley selection. The all-time Penguin career sack leader with 38.5. An explosive and flexible athlete with length and the agility to attack the quarterback in a variety of ways. Excellent after contact. Can free himself if initially beaten. Consistent performer. Can easily dip his way under and past a blocker without any loss of speed. Can flatten the edge. Easy change of direction. Smart and instinctive defender who reads the action quickly. Good anticipation and timing off the snap. Slender frame. May have a hard time adding the bulk he needs. Lacks the bull rush component to his game. Struggles to move tackles with his hands. Needs to do a better job sticking his feet to the ground against powerful run blocking. A high upside prospect who will need time to mature his body. Needs more weight and strength so that he can deal with NFL tackles and avoid simply getting locked onto upon contact. He has a combination of tools and skills that are difficult to find. His ability to play low, fast, quick, and explosive can make a tackle think twice about being a step late out of his stance. Rivers is a top notch kid who will bring a chip on his shoulder into the league. The 3-4 teams will especially be interested. Senior Bowl notes: Short arms but delivers a good inside punch at the snap. Quick to separate from the blocker. Plays with a good motor. Solid run player. Good pursuit range. Good bend and squeeze to the quarterback. Uses an arm under rip move. Has the ability to play up on run downs and down on pass downs. 2016 stats: 58 T, 19.5 TFL, 15 sacks, 1 PBU, 21 QBH, 1 FF, 3 FR. Edge speed:left 1.72, right 2.01. OSR:6/40 for DE. Third/fourth round. (A-32 3/8, H-9 1/2, BP-30, SS-4.42).