Rapid Reaction: Chiefs 42, Seahawks 24

Thoughts on the Seattle Seahawks' 42-24 loss against the Kansas City Chiefs in Week 12:

What it means: The Seahawks fell to 5-6 and risked falling into second place in the NFC West behind the St. Louis Rams, who were leading in Denver. Seattle has now lost twice at home, offsetting gains made by winning twice on the road. That makes it tougher for the Seahawks to finish better than 8-8. The Rams' Week 17 game at Qwest Field could decide the NFC West title, although it's tough projecting that far ahead. For Seattle, this game showed how much Matt Hasselbeck relies upon receiver Mike Williams, who missed the game after testing his injured left foot during warm-ups. Getting Williams back is critical for Seattle.

What I liked: Ben Obomanu continued his strong play at receiver for Seattle. A coverage breakdown freed him for an 87-yard touchdown reception. Obomanu also caught a 52-yard pass to open the second half. He's not Williams, but he's turning into a good receiver. Seattle's' special teams also made a few impact plays. Craig Terrill's seventh career blocked field goal for Seattle left him one short of Joe Nash's franchise record. Rookie Earl Thomas scored a touchdown on a return following a blocked punt.

What I didn't like: Seattle's defense isn't good enough to hold up when the offense struggles. The Chiefs held the ball for more than 19 of the first 23 minutes. They threw the ball to Dwayne Bowe at will for much of the game, allowing the receiver to catch 13 passes for 170 yards. Kansas City ran the ball at will for stretches. Seattle needed a blocked field goal and a touchdown off a blocked punt to stay within striking distance for much of the game.

Hindsight: Ever wonder why head coaches tell their quarterbacks to run out the first-half clock even when their offenses are functioning at a high level? The Chiefs showed why Sunday, losing a fumble when they tried to play aggressively while leading 21-7 late in the second quarter. Kansas City entered the game having committed a league-low seven turnovers, but the Chiefs had lost three fumbles on the road. This one was their fourth. Seattle turned the gift into three points.

Injurie(s) of note: Top cornerback Marcus Trufant left the field on a motorized cart after suffering a leg injury late in the first quarter. The team said he would not return, but Trufant was back in the game before halftime. Trufant is a willing tackler. His health tends to suffer when Seattle needs him to make tackles in run support. Trufant played right cornerback for a stretch earlier in his career to protect his right shoulder, which took a beating in run support when he played the left side. Trufant suffered a concussion in run support last week. He suffered the leg injury Sunday during a Chiefs running play.

Trending: On offense, the Seahawks' short-yardage rushing game is abysmal. The team has a physical back in Marshawn Lynch and a franchise left tackle in Russell Okung, but struggles even getting back to the line of scrimmage when it needs a yard for the first down. The team converted only once in five such situations Sunday, continuing a season-long trend.

What's next: The Seahawks face the Carolina Panthers at Qwest Field in Week 13.