Ah yes. Those pesky NFL power rankings. What do they mean? Why do we care?

I don't know the answer to either one of those questions. But the Kansas City Chiefs are moving up in power rankings across the Web and you gotta say that's a good thing. But, judging by most of the comments, the media is still skeptical of the Chiefs' ability to perform.

Here's a sampling of how the media is ranking the Kansas City Chiefs after their Week 1 win over the San Diego Chargers (Last week's rank is in parenthesis):

ESPN: 23 (27) "Young talent sent a loud message in upset of San Diego." (H/T GenericBrand) (27) "Young talent sent a loud message in upset of San Diego." (H/T GenericBrand)

FoxSports: 22 (27) "Did anyone really believe they had a chance to beat the Chargers? Yes, other than Chief fans. Color me surprised. How many times can you win with your quarterback throwing for just 68 yards?" (27) "Did anyone really believe they had a chance to beat the Chargers? Yes, other than Chief fans. Color me surprised. How many times can you win with your quarterback throwing for just 68 yards?"

CBS Sports: 23 (27) "You have to give that defense a lot of credit for coming up big at the end against San Diego. The return game will really help the Chiefs. They have speed at a lot of spots." (27) "You have to give that defense a lot of credit for coming up big at the end against San Diego. The return game will really help the Chiefs. They have speed at a lot of spots."

Walter Football: 26 (30) " I'm not buying a team that won because of a long run, fumble and punt return." (30) " I'm not buying a team that won because of a long run, fumble and punt return."

RealGM: 26 "The Chiefs will carry a lot of momentum coming out of their Week 1 victory over San Diego, but must produce better than 9.1% on third down to win those games where they don't receive punt returns for a touchdown." "The Chiefs will carry a lot of momentum coming out of their Week 1 victory over San Diego, but must produce better than 9.1% on third down to win those games where they don't receive punt returns for a touchdown."

Pro Football Talk: 16 (25) "The Chiefs gave Philip Rivers a much-needed 'Code Red.'" (H/T Saint) (25) "The Chiefs gave Philip Rivers a much-needed 'Code Red.'" (H/T Saint)

For just being Week 1, I think the rankings in the 23rd area are probably pretty accurate relative to the rest of the NFL.

Thoughts on these rankings? Are the Chiefs overrated? Underrated?