John Cougar Mellencamp's Son Walking-On At Duke!

John Cougar Mellencamp's son Hud is a walk-on at Duke University this season for the football team. I went to look up what position he plays, and I am a bit perplexed. He is the only guy on the team listed as a defensive back. I have no clue whether Coach Cut wants to use him as a nickel or dime back. The thing is, there are other guys classified as safeties and other guys classified as cornerbacks. He's the only guy classified as a defensive back. That perplexes me!