I'm smart enough to know that I don't have all the answers. We could look at the following:
10s, 11s and 12s play on Saturdays (this is before private school rugby starts, so I can't see any reason why these age groups were ever moved to Sunday)
10s to 12s (and possibly to 14s) play according to geographical districts/regions/zones - I can't see any reason, except possibly in A division, for boys to be travelling across Sydney to get a game of rugby. We're in a fight for the hearts and minds of not only the players, but also the parents. When there's other team options that only involve local games, we're going to lose those parents and their kids.
10s and 11s this year go down to Hs - is anyone out there seriously able to tell the difference between a 10G team and a 10H team, same with Es and Fs - is there going to be any great difference between the 2? The 10 D competition is made up of Narrabeen, Oatley, Beecroft, Hillview, Lane Cove, Norths, Hawkesbury & Roseville. 10E has Dural, Hornsby, Hills, Drummoyne, Chatswood, Hunters Hill, Collaroy & Wakehurst. 10F has Newport, Balmain, Lindfield, Wahroonga, Mosman, Harbord, North Rocks and Blue Mountains. Some fairly obvious issues there.
I don't underestimate the enormity of the task of putting 89 teams of 10 year olds into 8 Sydney wide divisions. So why are we trying? There's no possible way to grade those teams from 1-89 properly. Someone is always going to come last and 2nd last etc. - it's a lot less painful (esp for non-rugby mad parents) if the games are local. I mean 10 F teams from Newport to Blue Mountains and vice versa - this is madness.
15 a side from 10s so that teams don't need to be constantly reconfigured - it sound great in theory to gradually build up the numbers on teams, but the practical reality is that it means that you are constantly under pressure to recruit more players to keep teams going. I don't believe that the addition of 3 extra players at 10s is going to harm the development of individual skills. I draw peoples' attention to the otherwise unexplained drop in teams from 11s to 12s - 300 players a year - this isn't working guys.
15s-17s play as part of the district colts set up, these boys need access to a better structure than village clubs can provide. They're miles behind their counterparts in private school rugby.
They're my thoughts anyway.