Former walk-on Daniel Jones is leaving Duke. He claims he was told he'd be a first round pick. He's good, but I don't think Clayton is far behind him.
https://profootballtalk.nbcsports.com/2018/12/31/duke-quarterback-daniel-jones-enters-draft/
https://profootballtalk.nbcsports.com/2018/12/31/duke-quarterback-daniel-jones-enters-draft/