Typically, rash thinking and knee-jerk reactions are not advisable, in life and in Fantasy Football.
More than a few Bears fans would have preferred that the 2009 trade that brought Jay Cutler to Chicago never happened. Whether one of those was Cutler himself, hard to say.
Let's go out on a limb and say that an injury greatly affected your Fantasy Football matchup last week.
The last time the Bears saw the San Francisco 49ers, back in November 2012, they were effectively the Washington Generals to the 49ers Harlem Globetrotters.