I know some here, and elsewhere, would poo-poo the idea that the person who holds the title of "Most Powerful Person in the World" should have some relevant experience before getting that job.  Some of those people would even write emotional articles directed at me to shout down my arguments- I'm flattered guys.  They use rhetoric, irrelevant historical blurbs, logical leaps and emotion to promote something that feels good to them.  I think that approach to politics is extremely dangerous.  Frankly, it's not unlike what the neo-cons have done from the other side.  As progressives, we need to have a better approach. 

Back on topic, when we elect a President, we as a people, need to understand what the President's job really is.  First and foremost, it is to keep the nation safe, both from external threats, and internal.  Anybody who seeks that post, in my humble opinion, should have some credentials.  Simply having a vision that feels good isn't enough.  Vision, as wonderful as that is, won't keep me safe.  Would we hire a police chief in our city who has only been a street cop a few years?  Neither should we hire a President that has little or no experience in issues of national security.