It's important to understand what a contested possession (the definition changed in 2011) is when you highlight a comparison like that, but at no point was I suggesting Kelly is soft.
First possession stats would be more telling if you want to boil it down to an individual stat, but it's not one stat that makes my point. It's 1st possession, plus contested, plus clearance, plus goal assist, plus playmaker, plus score involvement, plus clangers, plus time in possession, etc.
Let me make it easier for you: if the price for Kelly is this year's first and next year's second, we should cash out. At that point it's not about what GWS got for Treloar, what West Coast got for Judd, or any other historical scenario.
What it is about is the given contractual situation, the given market mechanisms involved, and what that trade will do for our football team versus a variety of other scenarios on the table, including keeping the picks.
Kelly is not worth two quality players.