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

We’ve seen growth in training camp translate to the regular season. It’s helped guys solidify their roles and get paid. With camp set to begin Sunday, it’s a good time to look at players who could benefit the most from strong performances.

Anzalone, Barnes and Campbell are back for another run. Rodriguez is on the shelf, but the Lions have some intriguing depth battles to watch for the next month-plus.