Reason for concerns: NFC North (SportingNews.com)
A capsule look at reasons for concern among teams in the NFC North: Chicago Bears 1. Offensive line. Poor line play could prevent coordinator Mike Martz's offense from taking hold. QB Jay Cutler has been sacked 10 times, leading to only 14 first-team points in 16 possessions. Breakdowns have come largely at both tackle spots, but the Bears must rely on inexperienced Chris Williams and Frank Omiyale because backup Kevin Shaffer offers only a short-term replacement possibility.
