Sure, anyone can take on the name, logo, etc. But the question remains ... will it work? No telling, until someone becomes dedicated to doing it, doing it well and doing it correctly ... and then making money from it.
Listeners buy into a "title" only if they like the sound of the format. Advertisers only buy into it if they can get results from a multitude of people listening to it. Anything else is mere guessing ... until it happens, and that won't happen without a lot of planning, research and putting it together. It's not just a wild guess.
But, yeah, anyone can do it. The question will be ... how good is the consultant who can sell it?