I'm in total agreement with Gilgal1. My building's EC used to invite interested owners on to sub-committees related to their areas of expertise.
The subcommittees reported to the EC and everything worked pretty smoothly (notwithstanding the obligatory ratbags that every building has). The newcomers got a taste of strata life and the incumbents got a chance to see what they were made of, should any vacancies arise.
Sadly the sub-committee system faded away when the EC changed. The current EC is pretty much a one-man show with the EC just basically a rubber stamp for a very forceful character. Fortunately he's a decent bloke doing a good job but you wonder what will happen when he falls under the inevitable strata bus that gets us all in the end.
“Delegate, integrate and involve” would be my motto for ECs.