It's a good idea but it's basically draft tampering and I don't think Adelaide want to go down that route again.
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It's not draft tampering, it's simply the economics of supply and demand.
As Adelaide's supply of top end talent, the value that they place on their second round picks may diminish.
As St Kilda get closer to the salary cap limit, the value that we place on salary allocations increases.
It is possible that the two clubs identify a point in which their needs overlap. If this is draft tampering, than bundling late trash picks to trade for early draft picks for F/S and Academy Bidding is certainly tampering.