if teh afl are fairdinkum about a fair sytem, scarp the bs nab cup, scrap all practice matches and have a 30 rnd season with a final 5 not 8. there should not be a 50% chance to make finals.
or/
have 2 groups(not divisions) where the teams get rotated in the groups evey yr so they player each other equal times over a period
and the gf winner of each group play for the premiership cup. with this system they could bring in 4 new clubs (another WA.SA.Tas and either qld or sydney)
so there would be 2 groups of 10, an 18 rnd system, final 4 syastem and superbowl like premiership game