Pat, probably a lame analogy, but consider:
Why does a football team need a coach?
We all know the desired outcome is simply scoring more then the other team, how hard is that? Based on your personnel you structure an offense/defense/special team and go win. What is the big deal?
The big deal is it takes someone who knows how to organize all the personalities, structure a season plan, structure a game plan, teach it all, and review and adjust it all.
Knowing what to do is the easy part - most of the time - although plenty still get it wrong.
Going thru a classic course renovation is like letting the players coach the team. If you have really great players who can all put aside their ego and follow one of their own, then yes, it is possible.
If you owned an NFL team, is that what you would do?
In your scenario, a member owned club with decentralized decision making is going to have a very tough time finding that one guy everyone will listen to. And that one guy would need to be an incredible politician, architectural/construction expert and have enough skills to develop, communicate, and implement the plan. Until one actually goes through that, I don't think they can really understand all it entails.
Now, if you are a single owner who doesn't have to deal with all the members and politics, have some architectural skills and some construction know how, and can just fix or adjust if you get something wrong, then I believe it is completely doable.