With NFL training camp season upon us, Kevin Patra provides a refresher on the Detroit Lions' roster changes, position battles and notable subplots.

If the Lions are going to win the Super Bowl, they'll have to rely on far more than the group of stars that headline the roster.

The Lions’ interior defensive line will also feature some fresh faces, including former Ohio State defender Tyleik Williams, whom they selected with the 28th overall pick in this year’s NFL draft. Williams is a quick and powerful lineman who considers himself a film junkie and is ready to spread his wings as a defender.