Blend personality types to create a leadership team

All of the new entrepreneurs out there should read this article on the 7 personality types to blend together to create the perfect leadership team. Of course, as a writer, I also have to create different personality types and throw them into together. When the hero and the heroine are too similar, story lines tend to loose their spark. So what are the personality types that blend together for a good story?
1. The go getter - they keep the plot moving
2. The I'd like to leave now - they create the obstacle
3. The maverick - they do what they want, when they want and they're so fun about it
4. The voice of reason - to keep the reader sane
I'm sure there anyone else have any lovely personality types to mix up with these ones?