6. Chicago Bears (8-8 in 2013)
Last season, two teams tied for the most points surrendered during the season, both giving up 478 across 16 games. The Redskins finished 3-13, largely because they couldn’t stop anyone, while the Bears managed to get to 8-8, mainly because they had the NFL’s second-best offense. That has people thinking big in Chicago, as they surely won’t be that bad on defense again. But replacing Julius Peppers with Jared Allen isn’t a cure-all. And if Jay Cutler gets injured again in 2014, Josh McCown isn’t behind him anymore to bail Chicago out.
5. San Diego Chargers (9-7 in 2013)
Ten games into last season, the Chargers were 4-6 and headed nowhere; people were wondering if Mike McCoy was in over his head during the head coach’s first season in San Diego. Then, they went on a 5-1 stretch to finish the season, won a playoff game in Cincinnati and all of those early season problems were a distant memory. But that’s a razor-thin line the Chargers were living on, which should be a concern. Plus, losing offensive coordinator Ken Whisenhunt should leave people wondering if Philip Rivers will regress again.