2007: Rex Grossman, Chicago Bears
The fact that Rex Grossman led the Chicago Bears to the Super Bowl in 2006 seems like some type of historical anomaly; in reality, it speaks to just how good the Bears defense was that year. Despite the fact that his performance as a starting quarterback was a self-professed “roller coaster ride,” head coach Lovie Smith stuck with Grossman the following year, and the quarterback repaid him in kind by committing ten turnovers and putting up a 45.2 passer rating over his first three games of the year.
Eventually, Smith benched Grossman in favor of Brian Griese that year. Grossman finished the season with a 66.4 quarterback ranking, which was ranked 32nd in the NFL that year.