Source: 11 WRITERS LATER: How 20th Exec Alex Young Lost Control Of ‘The A-Team’ by Nikki Finke.
Wow. Just read it. And if you’re a writer, weep.
Here’s the money quote (which is not from this article but quoted in it):
Beginning with the sound era, studios and films producers have longed for a way to eliminate the screenwriter from the filmmaking process. By and large, writers are prickly personalities who absorb too much time, demand too much credit and need to be kept clear of the set, where they might interfere with the director, who is, after all, the real auteur of the film. With The A-Team, a Fox film derived from a 1980s TV series, this dream now is a reality. The film seems nearly writer-free. Absolutely no time gets wasted on story, character development or logic.
Learn and above all remember the lesson of Pixar.