Yes we know. That's why 280 million people listen to OTA radio. As I've said a few times, the problem is defining "compelling," and find someone who can actually connect with a mass audience. The word "compelling" is thrown around a lot, but it doesn't mean squat unless you have a specific name attached to it who is alive, available, willing to work, reasonable, and still relevant. Coming up with another 65 year old legend isn't going to be much better than running Imus or some other syndicated guy. It's easy to make it someone else's problem. It's a lot harder when it's YOUR problem, and you have to solve it, given all the realities of declining budgets and short attention spans. Put your butt and your money on the line and let's see what you do.
I have told you what I would do, ad-nauseam, you offer nothing to the conversation other than insisting why my ideas won't work. Are you hiring? Are you looking for a blueprint? PAY FOR IT! I have already offered examples, although broadly painted, of why your presumptions are just that, presumptuous, now go beat up someone else because your take on AM radio sounds strangely like some guy who has a AM tied around his ankle who HATES it and wishes daddy would come and take it away.