Check this out (registration required).
Relevant portion excerpted here:

The Chiefs proved again they are at their best when they forgo the conservative options.

“That's not our style,” said offensive coordinator Al Saunders, who less than an hour after the game was already holed up in his office and preparing for the Bengals.

“I was raised with the philosophy that the best way to win is to score more points than the other football team,” Saunders said. “The important thing from our standpoint is to always be the aggressor, always be on the attack. You put the defense at a disadvantage when you do that. You've got them back on their heels.”

The Chiefs earlier in the season had problems killing the clock in the fourth quarter. They inevitably pulled in the reins and punted the ball back to their opponent...

“If you look back to earlier in the season, we had that four-game stretch where we got leads and got a little conservative,” Green said. “That's not really who we are. Sometimes it may not be the best decision to continue to try to come up with big plays, but it seems like earlier in the year, when we were pulling back, we weren't having the success. We were trying to grind it.

“As long as we keep defenses off balance and mix it up, we seem to be much better off.”

Kansas City has already proven that they can score quickly when they need to. In the games that were close, they were never behind by more than a few points and were playing on the road against excellent defenses (except Oakland). Trent Green is showing that although he doesn't have the ability to make amazing throws like Favre or amazing runs like Elway or quick releases like Marino, he's using what talents he does have to devastating effect. He connects on the long ball better than anyone I've seen in recent years. How many long passes fall off of outstretched fingers or get picked off when they are thrown slightly short or over the wrong shoulder? More than half. And yet, how many long tosses by Green have hit the receiver in stride for a TD? Several over the last few weeks, including the game-winner over Green Bay and the back-breaker to Hall against the Bills. I saw Favre and Bledsoe miss 3 of those exact same passes each during those games. Sure, Trent has missed some, too, but I'm thinking it is less than half, and he has hit 100% when it counted.

That's why I say "pshaw" to those who say Dante Hall won those games with TD returns. Yeah, they were great. Against Pittsburgh, it gave the needed spark to get KC out of the hole. But in the other cases, his quick score merely meant more time for the opposing team to mount a scoring drive in response. That's where the defense has responded and improved, because last year, leaving a minute on the clock meant that KC was going to give up a score.

Not this year.

And as the year has gone on, as the defense has demonstrated it can be relied upon to preserve a lead, KC's offense has opened up.

Trent Green has 8 TDs to just 1 INT over the last few games. Dante Hall, Tony Gonzalez, Johnnie Morton, Eddie Kennison, and Priest Holmes have all demonstrated that they are lethal. You can't double all, and Trent will find the one or two who are most open. It's uncanny.

The Chiefs are hitting their stride. The offense and defense are both coming off of their two best games of the year, against dangerous teams.

I personally consider Cleveland and Buffalo far more dangerous than the Marty-ball style of Cincinnati.

The rest of the year won't be a cakewalk. Cincinnati is resurgent. Denver is still good, and the Mile High Zone is to be feared. Minnesota is scary. San Diego may be on the verge of turning things around. And the Raiders are always dangerous because of the hatred between the teams.

And don't get me started on the playoffs and the dangers there.

But here are the facts:
1) KC's defense has improved, and they won't face a devastating running attack combined with a strong defense for the rest of the season
2) KC's offense is hitting its stride
3) KC's special teams are still very special...it's only a matter of time before Hall hits another one, and he is affecting games even when he doesn't return a kick for a TD
Most Importantly: 4) Aside from the fact that KC is showing few holes, aside from the fact that KC has had amazingly few injuries, Dick Vermeil is known for having the best-prepared teams in the league. That's no accident. The only thing that could make the Chiefs stumble at this point is if they look past an opponent, and I don't think that Vermeil will allow that to happen.

There's no guarantee KC will run the table...but it might not be a bad bet.