The only guaranteed way to make something not very funny is to make it vague.
The best thing that happened during the filming of Out Cold is that I forged a friendship with Lee Majors that endured for almost 12 weeks.
The more people's money you take to do something, the more inputs you get.
You hate to see yourself do one draft of a script and then have somebody else come back in and change what you've done.
I don't think you can teach someone how to come up with good characters or a story.
If you're a studio writer, the funny better be on the page.