DE. Tennessee. Derek Barnett . 11. player. 59. Age is becoming a significant issue for the Dolphins defensive line. Their top edge rushers in Cameron Wake and Mario Williams are over the age of 30. They can’t be expected to last much longer. So the team decides to go young at defensive end. Derek Barnett may not have the hype of Garrett, but his production in a power conference would suggest he knows how to sack quarterbacks. He’s big, quick, aggressive and runs with a high motor.