A weekly examination of the Chiefs' ESPN.com Power Ranking:

Preseason: 22 | Last Week: 1 | ESPN.com Power Ranking since 2002

It's fair to debate just how good the Kansas City Chiefs really are. They have played a weak schedule (just one of their first nine opponents would be in the playoffs if the season ended today) and have wobbled the past three weeks against sub-.500 competition.

But the Chiefs have done everything asked of them, beating all nine opponents. They are the NFL's last remaining unbeaten team.

So, faults and all, the Chiefs deserve their spot as the No. 1 team in this week's ESPN Power Rankings.

If the Chiefs are indeed among the NFL's elite teams, they'll have plenty of opportunities to prove it once they return to game action after this week's bye. Their next game is Nov. 17 against the 7-1 Broncos in Denver.

Much of the mystery surrounding the Chiefs and how good they really are will be cleared up then.