I'll admit that I agree with this, and I still think Bate and Dunn should be traded.
Firstly, to use your concept, my best XXVIII (as of right now, with labels attached):
Frawley
Rivers
Bartram
Garland
Tapscott
Bennell
Grimes
Warnock (old?)
Joel Mac
Scully
Trengove
Gysberts
McKenzie
Moloney
Sylvia
Jones
Davey (old)
Jurrah
Watts
Green (old)
Petterd
Jetta
Bate (?)
Dunn (?)
Jamar (old)
Martin
Gawn
Morton
But behind these guys you have Tom McDonald, Lucas Cook and Sam Blease lurking for sure.
The old players are unlikely to have a massive role in our tilt for a flag. Yes, they'll be there when we play finals again, but I doubt they will be part of a GF-winning 22.
Bate and Dunn are immediate questionmarks for me though. Bate is because of Lucas Cook, who by all accounts is coming along nicely at Casey. Dunn, however, is a 2-part one, and those two parts are James Strauss and Sam Blease. Yes, not a direct replacement, but once one (or both) start playing a lot then Tapscott is a prime contender to move forward. Who does he replace up there? Well now.