Minorities in TV newsrooms (2006)

In 2006, blacks in local tv declined, but increased in radio news. And even though minorities were up a full percent from the year before, the NABJ was still very disappointed in this. Another great concern is the lack of black general managers. Again, why should this be such a concern? Why should one person be fired, and another hired, just because of the color of their skin? 2006, as opposed to the 2004-2005 article, is not too much different. Again, rates are up, just like they wanted, but they are still not happy. I'm confused..