Posted by ESPN.com's Mike Sando
The 49ers jumped from 16th to 13th in yards allowed per game following their season-ending victory over the Redskins.
With a No. 8 ranking in red zone defense, the 49ers were also the only NFC West team to finish among the top 10 in one of the five categories we tracked each week this season.
Seattle's No. 30 ranking in yards allowed per game represented a 15-spot drop from the 2007 season and the biggest surprise based on preseason expectations.
The Cardinals rank 28th in points allowed per game. Seventeen teams allowed 350 or more points this season. Arizona was the only one to earn a playoff spot.
Where NFC West defenses finished in yards allowed last season: Seattle 15, Arizona 17, St. Louis 21 and San Francisco 25.