Seahawks open preseason at San Diego

Although Pete Carroll is an unabashed optimist who has attacked the Seahawks’ post-lockout challenges with his usual can-do attitude, even Seattle’s perpetually sunny coach realizes Tarvaris Jackson can’t possibly be ready to run his offense after just a handful of practices. At least Carroll’s new quarterback won’t be the only player learning on the job when the NFL finally returns Thursday with five preseason games. Seattle visits the San Diego Chargers for the first nationally televised game of the year – even if both teams still aren’t ready for prime time. “Tarvaris has been with us for four days, or five days or something, that we’ve been here together with the whole line and the cadence and the system and the checks and all that,” Carroll said. “That’s a lot to ask. Other guys are still struggling to catch up right now. We have to look at it a little differently than we have at other times.” After the lockout wiped out most offseason activities and led to short training camps for all 32 teams, the exhibition season could be even more ramshackle than normal. Look for miscommunications, dropped passes, missed blocks, and games with more bloopers than the cutting-room floor at NFL Films. But the Qualcomm Stadium crowd will see two offenses on opposite sides of the post-lockout spectrum. While the Seahawks undertook an overhaul of their inconsistent offense, the Chargers made almost no changes to their vaunted attack, hoping it pays off in continuity and consistency. The Seahawks jettisoned Matt Hasselbeck after the three-time Pro Bowl selection’s successful decade, determined to rebuild a 7-9 club behind Jackson, the Vikings’ eternal Plan B behind Brett Favre in recent years. Never mind that Jackson is still learning his teammates’ names. He already has been anointed as Carroll’s starter, and he knows he’s got to start climbing a steep learning curve during his likely brief action tonight. He’s hoping he’ll eventually win over Seattle’s fans, who usually got steady quarterback play whenever Hasselbeck was healthy in the past decade. “There have been some good reactions about it, (but) I know there’s probably been some bad,” Jackson said. “Matt was here 10 or 11 years now, and did some great things here. I heard he was great in the community here. He’s been a staple in this community for a long time, and he took this organization to a different level. It’s going to be some hard shoes to fill, but … I’m not trying to take away from what Matt did. I’m just trying to be me.”