Of all the players on our list these are the ones who have either proven they are AFL quality or could be IMO, not seeing we keep them all necessarily, if the right trades come up anyone is tradeable but these guys are our future IMO:
Hickey, Steven, Savage, Ross, Lee, Billings, Newnes, Longer, Armitage, Delaney, White, Bruce, Stanley, Webster, Murdoch, Dunstan, Acres, Weller, Templeton.
A lot of other guys who could be but haven't shown enough IMO (Wright; kicking. Saunders; needs to start finding the goals. Curren; good player, but not overly talented or crucial part of the team. Geary; great person but again not overly talented, kicking can be average and may not fit our crucial age range. Roberton; HBF'er which we have a tonne of.)
Plenty of guys over 25/26 who should stay at the club but also not crucial for us in building a side to attack for a flag. Anyone, except for Roo, and the guys I named at the start should be considered tradeable for us IMO.
I think that's a biased list. One example is that Geary has proven himself to be AFL quality far more than Murdoch. Murdoch needs to prove that more than 15 disposals is more than just a theory. Geary has had 13 CONTESTED possessions.
Roberton is a "tall" half back flanker, which sets him apart from ..ALL of the others except for Gilbert who only has a couple of years left.
Sorry, your "proof" is not my "proof".