Soon after the parade and television appearances and celebrations were over, the message changed for the Seattle Seahawks. ''What's happened before is obviously significant, but it doesn't mean anything unless we go out and keep working,'' Seattle coach Pete Carroll said. Seattle begins training camp Friday with mostly the same roster that raised the championship trophy last February in New Jersey. The Seahawks' offseason priorities were focused on keeping their own, and they accomplished that task by signing safety Earl Thomas and cornerback Richard Sherman to long-term extensions, wide receiver Doug Baldwin to a shorter deal, bringing back defensive end Michael Bennett before he reached free agency and keeping Carroll in charge through 2016. More...