The Buccaneers have some good playmakers in their front seven, but they still need to add a few key pieces in their secondary before their defense can take that next step. Mackensie is the top pure cover player in this class and the closest thing to a shutdown corner of any player coming out of college. He still needs to improve his ball skills, but he’s a feisty defensive back that will give receivers trouble all day. — Dan. Cornerback. Clemson. Mackensie Alexander. 9. player. 48