Well when you think of how much Port gave up for pick 6 from Freo (a pick that almost certainly won't get them Rankine, Lukosious, or maybe even Rozee), I think it gives you an idea of how much they will be willing to give up for 4.I don't think pick 4 will be quite as golden as we think. Hope I'm wrong
And if Adelaide want it they'll have to outbid them you'd imagine.
The only threat seems to be one or both trading for pick 2 or 3 instead. But thankfully GCS don't seem keen to part with them.