With all the talk/speculation that the Chiefs could trade down in the draft (picking up some draft slots in the 1st/2nd rounds), one option that I haven't seen tossed around it the Chiefs actually drafting Sanchez with the #3 pick - then making a trade.
If its true that there are 3-4 teams in the hunt for the second quarterback on the board (assuming Detroit takes a QB) then the Chiefs are going to be fielding calls with various teams looking to move up to draft Sanchez.
This whole post and strategy is based on the idea that Seattle wants a QB.
Seattle knows the Chiefs don't need a QB - and they know that Aaron Curry/Eugene Monroe/Whoever are at the top of our list. They also know that those players (that the Chiefs want) may not be available anymore if the Chiefs trade down to 7 or 8 spot (I'm basing this off the Raiders/Jags being the next teams that may even THINK about drafting a QB). With this in mind, Seattle may not worry about us finding a trade partner - and therefore will have no motivation to move down one spot.
However, if the Chiefs actually draft Sanchez, Seattle will be forced to draft our pick (Aaron Curry?) AND give up a pick (or two) - in order to trade for Sanchez. Again - this is all dependant on Seattle wanting Sanchez.
Hope my rationale wasn't too confusing. The essence is - assuming Seattle wants Sanchez badly, we could force them to give up a pick for him by taking him off the board - and we lose nothing b/c Seattle drafts our top choice for us.
Update: For those of you who are quick to call this a stupid idea b/c Seattle won't take a QB (specifically Sanchez) - check this out - Rumors Fly That The Seahawks Will Draft A QB