So says David Hall, one of the best known names in the Talk Radio business. And David doesn’t just mean that it’s too Conservative.  He also means that the political dimension of Talk Radio is simply too thin to support every “spoken word” station in America, and I can’t imagine anyone disagreeing with that. Where is the new talent?  Where are the broadcasters who are taking risks?  Where are the experiments? David and I have a wide-ranging conversation about the prospects fo