I believe Seahawks really want Marshall and they're just trying to bring down the price for Marshall by playing soft and prolonging the situation.
There is no reason to go hard after Marshall ASAP, especially when there wasn't/isn't any other team as a threat to get Marshall... so it'd be the strategic thing to do to drag it until the draft to pin the Broncos into a decision.
However, I wouldn't be surprised if the Seahawks give up the 6th pick come draft day, and you best bet Broncos are definitely preparing for that situation.
Pete Carroll is a first year coach who hasn't accustomed to losing for the past decade, I can guarantee you that is what he's preaching right now in Seattle. He's going to do what he can do to have maximum success in 2010 as his first year, and there's nothing better than to get a proven elite WR in his offensive system. Jeremy Bates is probably in his ear about BM too.
In theory - Seahawks are organizing a full blown contract with Marshall that he will obviously have to agree on... this in itself will be a huge investment in money and time. When/if they do, Seahawks will have shown their hand at this point where they've gone out of their way to prepare and write up a huge contract for Marshall.
RFA ends a week before the draft, but I don't think it will make a difference if Seahawks really want him.
Come draft day or before the draft - if the Broncos make the Seahawks feel as if they have to give up the 6th, Seahawks will feel the pressure because they obviously want Marshall (at this point since they have a contract laid out).
And I hope Seahawks make a move out of desperation and give up the 6th. It doesn't look like they're going to draft a QB at this point. They'd be getting a long term elite WR for the 6th pick which would obviously be worth it if you're just looking at that alone.
If they're not getting a QB, you can argue they can pretty much get a similar position at 14... again the draft is always a risk. If they're planning to get a olineman, there will be some at 14 and later. If they want a safety, they'll miss on Berry but they might have Earl Thomas (who is projected to be better than Berry by some) and Taylor Mays (USC). If they're looking for McCoy, they could get Dan Williams at 14 (6th would probably be too low for McCoy and 14th might be too low for Dan so either way it's a risk). Unless their gunning for Haden, most the other positions will probably have good players at 14th.
The list goes on but the fact is if they're not getting a QB, 6th might be worth it for Marshall since they have a 14th. Seahawks will be trying to win THIS season with the Cards losing key players, making the Niners possible division favorites but not by far.
It would be pretty intense for a trade to happen on draft day - because if a trade were to happen Seahawks would have had to write him a contract already at THIS point (unless Seahawks run their s.hit fu.c.ked up which wouldn't be a surprise either), so they'd still be under the heat regardless.
Don't be surprised if we end up with the 6th. If Denver Broncos FO really don't want Marshall, they should be able to push the Seahawks up against the wall right when the Seahawks and Marshall agree on a contract.
This is pretty much the meter -
1. If we get a 6th, Seattle want him bad and paid full price.
2. If we get a 14th, Halfway point - Seattle wants him, Broncos want to get rid of him.
3. Anything less, Broncos want to get rid of him, PERIOD.
(if we get a first round - it just shows another half way point...if it's a low first we probably wanted to get rid of him regardless)