What most in radio have been drilled in is "content". Seriously, this has been the buzzword for atleast the last decade+. And it still may be somewhat valid. But PPM is showing, slowly but surely, that content is not critical especially if it is boring, long, unfocused, and/or not relevant. Radio will be forced to go back to an earlier style, and that is simply staying focused and saying it in as few words as possible. Hmm, kind of like 1980? Wow. Perhaps some of us were right about this 36 years ago. Disclaimer: I certainly don't think this "content" argument hurt radio, in fact, in many cases made radio more entertaining. However, it also promoted many to mistake "content" for simply more inane talk. You can hear it in all size markets today, and it isn't pretty. The point is that this type of radio is not PPM friendly, nor should it be.
You are misunderstanding what is meant by the term "content". It simply means that whatever is on the air has to be well done, whether it be mixes, a music sweep, talk, a morning show or whatever.
Content is critical. But that just means that whatever is programmed has to be good. If it is AC music, the flow has to be perfect, the songs the best testing ones and the format mechanics conducive to continued listening. And "content" does not mean "talk". It means good programming.