Seahawks' uncharacteristic collapse lessens margin for error in tough NFC West

SEATTLE -- With a hushed voice and a downward gaze, Bobby Wagner mixed frustration and perspective in his postgame news conference on Sunday.

The Seattle Seahawks' 10th-year veteran and defensive captain has been around long enough to know that seasons aren't made or broken in Week 2. He also has been around long enough to know that the Seahawks usually don't do what they did in a 33-30 overtime loss to the Tennessee Titans.

It wasn't just that they fell at home as six-point favorites.

The real surprise was how they lost -- by faltering in the fourth quarter.

"It's definitely not a great feeling," said Wagner, who was in no mood to celebrate his franchise-record 20 tackles, "but it's something…