Are the Chiefs real or opportunistic?
They've gone from worst to first. Kansas City, laughingstock of 2012, is the sole undefeated remaining in 2013. But are the Chiefs for real?
There is a lot to like. Kansas City leads the league in defense against points, allowing just 12.3 per game -- better than last season's leader, Seattle, which allowed 15.3 per game. The Chiefs are a league-best plus-12 for turnovers, and are first in sacks. Stretching back to his time in San Francisco, quarterback Alex Smith hasn't lost a game ...
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