Green Bay Packers defensive coordinator Joe Barry understands the questions about his track record. Barry had porous defenses in his two previous stints as a coordinator with Detroit and Washington. He followed that up with a successful four-year stint as the Los Angeles Rams’ linebackers coach. He believes the lessons from Detroit and Washington will help this time around. “I’m really proud of my scars,” Barry said Tuesday. “I really am. I think in life, you’re hardened in life by tough experiences. Now don’t get me wrong, I think you can learn a lot from having success and bei...