For what it's worth....the movement to few live/local air personalities started back in the early-70's when FM stations, just starting to compete with the then AM-dominant music stations, adopted "more music, less talk" as their mantra. Well, eliminating live, local on-air folks wasn't their intention, but the environment created made it possible years later when computer automation became easy and cheap.
Back in the early 70's, liner-cards became the rage, then no-talk jingles-between-records later, and eventually cold segues caught on big time even later on.
What's my point? Music radio stations for over 35 years has been "teaching" the audience that "more music-less talk" was great, and thus any type of taking was a huge negative. And, you know what? The listeners understood and agreed. The radio industry was just beginning to put a noose around it's own neck.
So, what's happened? Pandora (and other similar services), MP3 players, a few of us still have cars with CD players, a few with satellite radio.....all of these are being used by millions and millions of people daily. Hey, a juke box is a juke box, right? Only, radio plays commercials....the others usually don't.
How does radio fight the problem they created decades ago? By cutting thousands and thousands of air talent.... live human beings...the only ones who have the ability to maybe create compelling content between the music. Seems to me the radio industry is committing suicide. And, that's a real shame to the industry we all grew up loving. We are in a very different media world in 2012.