ALLEN PARK -- After a tumultuous offseason, where the Detroit Lions had to deal with the embarrassment of seven arrests, Green Bay Packers wide receiver Greg Jennings questioned Detroit's ability to stay disciplined.

"Can they maintain their composure, both on the field and off the field?" Jennings said during an NFL Network interview. "They're a very talented team, but they have struggles on the field containing their composure, and definitely, the things we've heard of, them being in the media with off-the-field problems and off-the-field issues. Can they maintain their composure? Can they be a professional ball club for 16, 17, 18 solid weeks throughout the regular season?"

The Lions have actually done a surprisingly good job in two key areas. Most importantly, there have been no arrests since July. Second, the team has significantly reduced its personal foul penalties this season.

In 2011, the Lions committed 36 15-yard infractions. This season, they've registered just nine through 12 games. Unfortunately, that hasn't translated into success as the team has stumbled to a 4-8 record.

On Wednesday, Jennings was asked if he believes the Lions have cleaned up their act.

"As far as their discipline, in the past they have struggled with it and I think (Schwartz) has done a great job of getting them to kind of hone in on what he wants them to be like on the field as well as off the field," Jennings said. "What he stands for, he's a feisty guy. He wants them to be feisty, but he wants them to play within the rules. I think he's doing a great job of getting them to do that."