A weekly examination of the San Francisco 49ers' ESPN.com Power Ranking:Preseason: 3 | Last Week: 6 | ESPN.com Power Ranking since 2002If you told the San Francisco 49ers five weeks ago that they'd be ranked sixth in the Week 9 NFL Power rankings at their bye week, I'm sure they'd take it.Yes, there is a glut of very strong teams atop the power rankings, and the 49ers have not been able to climb back atop the list, but I'm sure they are satisfied.