This is my theory why there are so many bad scripts out there. Writing a good script is hard work. We have found, so far, that although there are often good ideas and dedicated writers, there are very basic principals of screenwriting that people are obviously not picking up. We try to tell people what a film script is supposed to do, as opposed to a play or any other kinds of writing. And we give feedback.
Feedback is very important in the beginning stage to open up a writer's potential.
In Hollywood, Britain is known for having raw talent but underdeveloped screenplays. Of course in Hollywood scripts get overdeveloped, but here, it seems, producers and script editors treat writers very gingerly and tend not to interfere, as opposed to running the writer over, as they do in Hollywood. The problem is a big one because, although I believe the writer should be in charge of his work, it is down to professional feedback again. And because of the tradition of respecting the writer, there are not as many script editors and producers here with the skills to develop a script to its best potential. Scripts need to be shaped.