If you wanna do it your proper way, I recommend you should do it yourself. I did that till I found a better method.
In my now successful club, I promote everyone who joins to co-ordinator automatically. 5 out of every hundred arbitrary members who join will offer to make tournaments etc.
Promote them then. Promotion to admin or S/A requires a level of trust, but it also gives the member a sense of pride. This makes them want to help the club.
I was wondering if anyone has advice on how to attract active, dependable admins to your club?