Here's the latest set of power rankings. I'm adding more all day at this link on SB Nation Kansas City (including why I ranked the Chiefs 12th in the SB Nation power rankings).
Whoops, this is from last week:
Sporting News: 13 (12): Give them a couple of A's for effort, but that's little consolation. Their next "scary" opponent is Tennessee-in Week 16.
FOX Sports: 10 (13): You certainly could argue that Kansas City is probably the NFL's most improved team this season. The formula is very simple for them to win: run the ball well and take the ball out of QB Matt Cassel's hands as much as possible.
FanHouse: 15 (15): Good teams blow out bad teams at home, and after taking care of business against the Jaguars, Kansas City has earned the right to be called a "good team." The Chiefs are sticking to the winning formula of good defense plus a great running game, and it should continue to work for them.