*cough*
Hawthorn have traded in
Lake
Gibson
Burgoyne
Hale
Gunston
McEvoy
Sydney have traded in
Mcglynn
Richards
Kennedy
Shaw
Franklin
Tippett
Considering between them they have appeared in the last three Grand Finals for 3 premierships i'd say they seem to be proving a point.
I will concede that their youth improving was still a huge factor in all of it.
Yes, these are more than usual. But 5 or so best 22 players is not generally the backbone of a team.