Thanks Fluffy and HT74. I could be totally wrong but I just remember hearing something about the VFL introducing zoning in the mid 70s (1974-5?) which Richmond and Fitzroy opposed. We ended up getting poor zones (to which some people blamed the VFL paying us back for being arrogant and successful) while say Hawthorn got Assumption College.
My memory could be a bit vague about this also but I thought zoning came in a bit earlier than this. I remember we had the Sunraysia (Mildura/Swan Hill) zone and did quite well out of it. Mark Lee, Dale Weightman, Merv Keane, Jim Jess are a few that spring to mind. I was from Bendigo and they were zoned to Carlton who did very well - Geoff Southby, Rod Ashman, Des English, Peter Dean, Jim Buckley, Ken Sheldon, Ray Byrne, Dean Rice, Peter Rhode, Tony Southcombe, Peter McConville and many others. From memory, zoning had its pros and cons - some sides poured a lot more effort and resources into their zones and were rewarded for it but not all zones were equal - they all had a major league as well as minor leagues but not all major leagues were at the same strength/standard, hence an uneven playing field.