Darling + 12 for pick 5 + 28 if GWS get 3 and 5, then on trade it to us for pick 1 and 20
The reason why I'd trade aggressively for pick 1 is to then on trade that to GWS and trump Freo's pick 3 offer.
Pick 1 to GWS - McCarthy (replaces Darling) + pick 7 + 15 to Eagles.
Hence why the offer to Essendon included a second mature player.
It will be interesting what Essendon looks for. They are in a very good position to both improve their list with a mature player or two and still get access to the first round this year and draft a quality kid.
I think this is what they will do. Try and get a required mature player type (say a KP forward) plus still get to draft a quality kid. Then the list can have a real crack at a flag before Watson and a couple of the other older guys retire but still build the list through the draft.
There's a lot of pressure getting the pick 1 right. This year is a strong draft in the 1st round so why not "have your cake and eat it to".
GWS can afford to risk a pick 1 failure or injury. Teams without all those draft concessions need to get it right.