Amateur vs. Professional Photojournalists

There is a blog devoted to amateur photographers who want to be professionals. Within it is a good read about the differences between amateur and professional photographers. There is a poorly photographed studio illustration to accompany the article, but the article does a good job of articulating some, but definitely not all, of the differences well. The poorly made studio illustration describes well the reason there are many specializations that exist in photography and the reasons they exist. Just because a person is a photographer, doesn't mean they are great at shooting in every subject area or every type of photography--even at the professional level. To further my argument, the same blog has another article with a well concieved photograph as its illustration.