Safety Louis Delmas' surgery is a reminder Detroit is woefully thin in the secondary. It's just not a good back seven on defense. Sorry. Chicago ranks this high because of Lovie Smith and a few standouts, but the talent and track record are mostly overrated. Green Bay has the players and coach to bounce right back to their 2010 level. It's a strong depth chart. Rob Ryan should have enough in the secondary to improve things in Dallas.