Part of it is the inverse draft is going to put better talent on the bad teams. If the coaching change that eventually follows can spark that talent, then you have a chance to turn around the franchise.
The 9ers have had pretty good talent over the past years and once they got Harbaugh in, that talent was able to be made a cohesive team.
The Rams have had pretty high draft picks but not until Fisher came on board last year have they been able to put a product out that appears to have a bright future. QB is still a question but Bradford isn't a terrible QB. More talent on offense should help him and the Rams are loaded with top round picks for the next few years.
The Cardinals have had high picks but organizationally, they just weren't sound. Whiz got them to the big game but they couldn't identify a franchise QB to take over for Kurt Warner. Palmer is a stop gap. Maybe he has a revival but they need a long term solution. Arians is just crazy like a fox enough that their fortunes could be brighter going forward.
If you look at the AFCW, besides the Marty-Ball Chargers era, has been down for several years. Denver needs to identify a Post-Manning QB and KC will need to do the same but Smith may do for the short term.
The AFCE has gotten shaky lately but as long as Bill/Brady are relevant, will not be looked at as weak. Dolphins should improve. Jets and Bills are unknown to me how long they will flounder. Jets were ascending but Sanchez does not appear to be the franchise QB they originally thought he was.
The NFCE eventually will rebound, but Dallas and Philly have been mediocre. NY Giants slipped last year but have been a threat to win it all the past years. Washington is coming on though RGIII's health holds the key for them.
So to answer the OP, the window is open for the Seahawks but there are a lot of competition in the conference so be cognizant of the fact it isn't a cake walk.