Outlook: There is no way to sugar coat this: The Detroit Lions fielded an poor defense in 2012. They gave up lots of touchdowns and lots of points (sixth worst in both categories). In most fantasy scoring systems, this unit ranked among the eight worst. Their biggest problem - a lack of discipline - is amplified by the actions of their biggest star: defensive tackle Ndamukong Suh. There are just too many instances where things go bad, and the Lions do not respond well. It would be nice to expect them to settle down, but there are a good deal of youthful players who will play big roles in 2013. With all of that youth around, it's likely that they'll struggle again this season.