Different team, different time. The current offense is built in a way that requires strong QB play. The 06 team had a much better offensive line and was built towards minimizing the number of mistakes the QB can make. Sure at times Grossman was given the keys to the offense, but as the season went on, especially in the last few games of the season it was a much more basic game plan most of the time (see the St Louis game) The current offense is mostly generated through Matt Forte, and it can continue to be. This Bears team is not successful right now because of their offense. Not that Cutler is chopped liver out there, far from it, but the way the line and receivers have performed for the majority of the year, the offense already had to rely on Forte, and now they'll have to do it even more. Fortunately, none of the defenses coming up in the next 5 weeks are really effective against the run. Only Seattle is in the top 10 in run defense efficiency. Even better, none of the final 6 opponents are in the top half of the league in pass defense. Basically, the Bears are done playing good defenses this year.