Week 11 was not a good week for the top two defenses in the NFL.
The Houston Texans won last week’s game, 43-37, in overtime versus the Jacksonville Jaguars. The Jaguars offense scored seven times in 14 possessions against the Texans. It was the worst defensive performance of the Texans “D” since their loss to the Green Bay Packers, 42-24 in Week Six. The seven scores allowed by their defense was the most allowed this season.
The Chicago Bears suffered a 32-7 home defeat at the hands of the San Francisco last Monday night. The Bears allowed the 49ers offense to score six times in 10 possessions, the Bears’ defense worst performance of 2012.
These bad performances by the Texans and Bears defenses opened the door for the 49ers defense to take over first place in this week’s NFL STOP Factor rankings. The San Francisco defense allowed the Chicago offense to score only once in 10 possessions. The 49ers jumped ahead of Houston and Chicago in the rankings with a 74.3 STOP Factor ranking.
(The STOP Factor is based on the premise that it is the defense’s job to stop their opponents from scoring on each possession. To get a team’s STOP Factor, you divide the number of times a defense stops the offense from scoring – offensive unit TD or field goal – by the number of total possessions by the opposition.)