"Tarvaris Jackson was on the practice field Wednesday, but Charlie Whitehurst was under center with Seattle's first-unit offense.

That serves as a pretty accurate summary of Seattle's plans for this week. The Seahawks are preparing as if Whitehurst will start, but Jackson isn't out of the picture entirely because of the strained pectoral muscle he suffered Oct. 9 in New York.

"We may go all the way to game time to understand whether he'll be available to us," coach Pete Carroll said of Jackson.

Jackson was limited in practice Wednesday, and Carroll indicated that the workload wouldn't include much more than handing the ball off. Jackson has been able to toss the ball in a game of catch, but he hasn't progressed to competitive throws against a defense.

"We're just going to wait as long as we can and see how he progresses," Carroll said."