My guess would be Collier-Dawkins, but there are 3 or 4 others who he easily might have been talking about.
It is a great position to be in, but even in this heady space the decisions on who goes and who stays are going to be controversial, with no correct answer reached, only opinion. (We will likely miss out on McCrae's input here).
We are the only club that may be purposely letting experienced players of quality go elsewhere. But lets hope we can create some space in the best 25 to allow for those on the edge to emerge.
Another that may be the mystery player is Hugo Ralphsmith, from the training I watched and a couple of scratchies before lockdown he showed great AFL traits in multiple positions, I said at the time he was a stick and body not ready for AFL footy. I am sure I heard someone say that he has put at 7kg whilst in the hub through weights and diet etc. If true he has gone from 188cm 75kg up to 82kg.