I don't think this issue is restricted to big corporate radio stations.
I also think there are a lot of models people are looking at. The NPR one seems to be working in public radio. Have top notch first rate national product, build it as a brand, and support it with an online presence. That's an idea that could easily be applied to commercial radio.
Also, the cable TV model, where the transmitter and tower serves the local area, and they distribute content created by outside suppliers, some local and some national. The radio station doesn't "hire" people, but offers distribution for a fee. The content creator sells advertising.
A third model is some radio stations have unique and in-demand local programming. They will become content suppliers and syndicators. That's kind of what CC is doing with their web & spoke plan.
I think if you're an on-air talent, and if you think you're good, you focus your attention on building a fan base like a musician. Own an online presence, communicate with your "fans" and serve them with direct content. That system works for musicians, and it can work for talent. Once you have an audience, it will be easy to take your "show" to radio stations, either as an independent syndicator, or to an existing one.
That, ladies and gentlemen, is the future of radio. So get to work!