List demographics - i.e. the age spread of your players. With the exception of the odd precocious youngster and evergreen veteran, the bulk of a successful team fall in the 23-29 range. For example, in 2017 we had the following (I'm using the ages they turned that calendar year):
29 - probably the best 29y/o in the game at that point, Jack, plus two more of the best in Sheds and Houli, and a fourth very good one in Grigg. (Hampson in the 2s)
28 - just one, but he was the best of them, and probably the second best player in the game at the time, Rance.
27 - just one, but again the best of them, Cotch. (Lloyd in the 2s)
26 - not just the best 26y/o but also the best player, Dusty, as well as Grimes, DTLD and Lambo. (Griffens in the 2s)
25 - Prestia and Caddy. (Conca and Batchelor in the 2s.)
No one over 30 apart from 31yo Maric (2s).
That is a brilliant senior core. 12 of our premiership 22 - at least seven of them champions, all in their prime. There wouldn't be a 25-29 group close to that in the game right now. And some pretty solid depth in the 2s. Then we had:
24 - Brando, Broad, Towner
23 - Nank, Vlastuin, KMac
with
21- George, Butler
20 - Rioli
19 - Graham
making up the remainder of the premiership side, and
21 - Short
19 - Bolton
on the fringe.
Now look at today:
33 - Jack, Houli, Sheds
31 - Cotch
30 - Dusty, Grimes, DTLD, Lambo
29 - Lynch, Prestia, Caddy, Pickett
28 - Broad
27 - Nank, Vlas, KMac, Aarts
26 - NO ONE
25 - George, Short, Soldo, Parker
24 - Rioli, Chol
23 - Bolton, Graham, Baker, Egg, Garth
22 - Balta, CJ, Naish, Miller, Mate
21 - RCD, Ross, Stack, Ryan
20 - Dow, Martyn, Cumberland, Ralphy, Biggie
19 - MoJu
The equalisation measures at least half work - they drag top teams down. If not for the salary cap we'd have Brando alongside Broad, and Markov and Butler in the 25yo group. Nonetheless, we'd still be a bit thin thanks to our poor 2013-15 haul at the draft.