A weekly examination of the 49ers' ESPN.com Power Ranking:Preseason: 3 | Last Week: 8 | ESPN.com Power Ranking since 2002The 49ers' tumble this week wasn't drastic, which was the right call. The 49ers have lost two straight games by a total of four points. They have gone from No. 5 to No. 9 in the ESPN.com Power Rankings.Last week, after a 10-9 home loss to Carolina, I didn't think the 49ers should have dropped three spots.