I can see a scenario that works really well for both sides.
Bakes goes to West Coast for the 2, 2nd rounders, we give them back their own 3rd this year as part of the trade. By giving the 2nd and not pushing for a 1st, they help the overall trade out by offering Graham a bit of overs, either in terms of $'s or contract length, we get another 2nd straight after our own as compo.
West Coast give that 3rd rounder to Brisbane for Devon Roberton, who they aren't playing and certainly won't be playing once they add another Ashcroft and the other academy kid this year.
West Coast give up 2 2nds and get Baker, Graham and Roberton.
We give up Bakes and Graham and get 3 early 2nds.
We use 1 of those 2nds (next years) as part of a trade for 1 of GC's top 10 picks.