Three reasons the secondary will improve even without another free agent signing:

1. The improved defensive line will automatically make the secondary better. Louis Delmas joked that he’ll just be sitting back and watching the line do all the work. It was a joke, but it’s close to reality. Think Aaron Rodgers, Jay Cutler and the rest won’t be under extra pressure? Absolutely they will be.

2. Safety Erik Coleman could prove to be a quality free agent signing. The 29-year-old safety has been working out with Louis Delmas during the lockout and was on hand at the player workouts. He’s a veteran who should be able to adapt quickly to the Lions’ defensive scheme.

3. Louis Delmas expects to be 100 percent healthy following offseason groin surgery. He was never 100 percent all during last season.

(Follow me on Twitter @PaulaPasche. Will offer daily lists of threes through July 22. Tell your friends. Let me know if you agree or not.)