The Detroit Lions have one of the most complete rosters in the NFL, with kicker being the only obvious hole on a squad that has Super Bowl aspirations.

Whereas the offense and defense can sometimes trade “wins” in training camp because of one unit is simply having a bad day, the victor in Lions camp has often been the side that is imposing its will on the other.

Coaches and players have mentioned daily how the opposite position groups are giving them the best possible chance to get better before the season.

“I mean, shoot, they all causing me problems. G— damn. I’m stressing out there,” Carlton Davis said.

“It’s great competition. I love it. I need to be pushed. I need that competition level, man. I would be lying if I said that I wasn’t out there trying to be the best version of myself against those guys. If I wasn’t, they would kind of kick my ass. So I’m out there pushing them and they’re pushing me. It’s been great.”

These feelings are playing out all over the field, including from the receivers about the cornerbacks. That hasn’t always been the case in seasons past. The Lions had a top-five offense in 2022 and 2023, while the defense simply didn’t quite match the domination. The receiving talent in Detroit’s offense was far-and-away better than the cornerbacks in last year’s camp, even with the infusion of talent from Brian Branch, C.J. Gardner-Johnson and Cam Sutton.

Earlier this week, Lions receiver Jameson Williams said competing against rookie corner Terrion Arnold takes them back to their college days at Alabama: Just two guys getting each other ready for war.

“We go at it every day. One-on-one, team, seven-on-seven, we going at it all day, just trying to make each other better, though. Just how we did in school, we would do the same thing,” Williams said. “We were always going against each other. He would call me out. I’m right there, I ain’t duckin’. I’m right there. That’s how we do it, though. Just get each other better.”

The Lions have had an elite offensive line in the years that their offense took off, which has provided some good competition for a budding D-line group over the years. When the season comes, it’s hard to imagine they’ll find another group as daunting as the one they’ve lined up across from all summer.

“It’s very beneficial,” defensive tackle Alim McNeill said. “Those are some great guys over there, great group of guys chemistry-wise. They block well together. And that’s one of the best groups in the league — the best group, in my opinion. So it’s great to get work against. It just makes everybody better.

“Iron sharpens iron.”

Campbell said there’s a noticeable difference in all phases of Detroit’s defense, which is paying dividends for an offense that could use every competitive snap it can to improve on outstanding performances from the last two seasons.

“With the DBs, man, you feel us challenge, we’re challenging on the perimeter and they’re covering pretty good down the field, so when you do that, you can’t help but get better,” Campbell said.According to the Lions coach, this can also benefit the coordinators.

“It’s only going to make you better…from a physical standpoint, but also schematically. You’re trying t figure out ways to beat your own defense … ‘How do we scheme this up, how do we do some of this stuff?’” Campbell said.

“So, it forces you to think, it forces you to (think), ‘How do I get a leg up on these guys?’ … When you’re the head coach, that’s what you want. You want this constant chess match going on where you’re getting tested and you’re trying to find weaknesses in each other because that’s how you get better, you just keep doing this as you’re raising the bar.

“But I think physically it’s going to help those guys, it helps those guys up front. We feel pretty confident about this O-line we’ve got, but when they get tested the way they’re getting tested right now, it’s only going to make them better and they can’t let off the gas. It’s a good place to be in.”