The BBC's a fantastic resource, comparable to the NHS in some ways. But it is also a state broadcaster. It clearly needs far-reaching reform, and if you want to appreciate how difficult that will be you only need to recall the response to
Corbyn's Alternative McTaggart Lecture, which included proposals for governance and funding reform that would go a long way towards establishing meaningful autonomy. As one, the media class reacted as if he'd threatened to round them up and send them to the gulag.
As with most of Britain's cultural and political institutions, the people running the show will actively fight to maintain established hierarchies even where they themselves are subservient within those hierarchies. They will accept reform over their cold dead bodies. As such I simply don't believe it's achievable. The BBC will allow itself to be destroyed before it will accept genuine change.