If anything we should be discussing Burleson's possible top 10 finish if Jackson misses games instead of Hasselbeck's value.
Exactomundo. Fantasy Football Index, p. 127: "Burleson, who grew up in Seattle, looks like an ideal fit for Mike Holmgren's offense - almost like another Darrell Jackson. He has great hands, after-the-catch ability, and he's willing to go across the middle."
Of course, Burleson hasn't the same chemistry with Matt yet; but it seems to me that if -and only if- Djax misses significant time then Burleson should be able to step into the wr1 role with Hasselbeck not missing a beat. If Djax can completely recover, however, and the receiver corps stays generally healthy, then Matt's numbers could get embarrassing. Most reports tend toward the thinking that Seattle will pass more this year than last. Don't overlook the division they play in, either.
I picked up Burleson in my draft based on the fact that Matt's gonna throw those tds whether Djax is there or not. Recall that 10 receiving tds are up for grabs since JJ left town. While Burleson is built like Djax, Stevens is built like JJ: a large red zone target. I look for Stevens to also benefit from Matt's abilities and Holmgren's offense; and available late in the draft for good value.