Coach Pete Carroll made the announcement at his news conference Monday.
The next question: What would have to happen for Charlie Whitehurst to get a start?
Hasselbeck suffered three third-quarter turnovers against Atlanta in Week 15. Would it take four turnovers in one quarter for Whitehurst to get a start? Five turnovers? Ten?
The decision to stick with Hasselbeck under these circumstances suggests Seattle isn't convinced Whitehurst would provide an upgrade in the short term and possibly beyond, particularly after Carroll said he forgot to give Whitehurst a shot while getting blown out against San Francisco a week earlier.
The decision to stick with Hasselbeck also suggests Carroll thinks the veteran quarterback can adjust his approach and get back to the form he showed against New Orleans, Arizona (the second time) and Chicago earlier in the season.
The Seahawks would seemingly want to evaluate Whitehurst after giving him a full week of practices with the first-team offense. That is not going to happen this week. It could still happen against St. Louis in Week 17, but Hasselbeck would obviously have to falter badly or suffer an injury to lose the starting job.
Seattle has lost four of its last five and six of its last eight. Whitehurst started one of those defeats. He hasn't dazzled while getting limited reps. It's looking like Seattle will get through this season without seeing Whitehurst play much in game situations.