The best content comes from people who love what they are doing. You can't hire experts to figure that out. But you can give resources to people who would do it anyway, and share in the fruits of their labour. Large publishers then become media stables, places that provide the computers and net access for writers. The writers themselves provide the context - their point of view, and their area of specialization.
Marketing is done through communities of interest.
Reporters will then leave major media, set up their own content serving stations. People will be charging miniscule amounts of money to read eachother's stories, and after a while we'll realize - hey, I like writing, I like telling stories. That you would listen to me is flattery. I like your stories too, so let's trade. So we'll all forget about money, sit around and make art, and tell each other stories, while computers handle all the problems of the world.