The Bears have been playing throwaway games for quite some time. When you already clinch the playoffs, and are pretty much a shoe in for home field advantage, you're not going to run your full offensive and defensive schemes. Why would you show your hand when it's not necessary? Its like playing in the preseason. You may be playing your starters, but they're not running the same plays or coverages they normally would for the whole game. Why give the scouts something to write about and something to prepare for? It's the same reason Denny Green thought the Bears were bad, because when he saw them in preseason, they were running a grade school offense. And just to point out, thinking the Saints have a better defense than the Bears is completely insane. Especially when they're ranked 5th in YPG, 3rd in Points per game, and 2nd in DVOA while the Saints are 11th in YPG, 13 in PPG, and 19th in DVOA. There really is no comparison.