Indeed, everyone is their own "idea man", across everything in life, this field especially.
For example, a friend came to me last night, and asked me about K-12 Educational reform, and what Ideas I had, I told him, and I also said if you want to take this more seriously than lets write down and organize a document. I asked him if this was for just a discussion, or if this was for more.
He said more, but lets start with a discussion.
Also I told him to talk to a mutual friend, and another person I knew, so we could all sit down an discuss this formally.
I also said I don't think we'd be the ones who can implement such things, but anyways.
So my point is, how serious are you about getting what you want?
Serious people go out and do all they can to make it happen, not pay others to do it for them.
Not to mention the issue on if you pay someone to do make and carry out your ideas instead of you, they will likely do it as they see it, not as you see it, and it's nothing personal against you, it's just how it is.
Sure they can follow your plans, but it won't be the same as you being there every step of the way.
For some people, losing that creative control over their idea ends badly all around.
Know what you know, what you want, what you can do, and most importantly what you don't know, and what you can't do, then and only then you might one day understand.