"I wasn't involved, except to the degree that they sent me drafts of the script as the writer turned them in. They asked me at one point to write a memo about what I thought of it"

Michael Chabon's quote recommends that he was not greatly involved in the task, however was asked to offer feedback on the script. He was sent out drafts of the script as the author turned them in, and was asked to write a memo about his thoughts on it. This suggests that he was consulted for his viewpoint, however was not actively associated with the production of the script. His involvement was limited to providing feedback on the drafts, which recommends that he was not a significant contributor to the project. This quote likewise suggests that the task was currently underway when he was asked to provide his viewpoint, which he was not associated with the preliminary phases of the project.