Greg Daniels — American Writer born on June 13, 1963,

Gregory Martin "Greg" Daniels is an American television comedy writer, producer, and director. He is known for his work on several television series, including Saturday Night Live, The Simpsons, King of the Hill and The Office. All four shows were named among Time '​s James Poniewozik's All Time 100 TV Shows. Daniels attended Harvard University and he became friends with Conan O'Brien. Their first writing credit was for Not Necessarily the News, before they were laid off due to budget cuts. He eventually became a writer for two long-running series: Saturday Night Live and The Simpsons... (wikipedia)

I love 'The Office' format so much that I wanted to close it out.
It happened to me on 'King of the Hill,' where I'd left it before the end and didn't really participate in the ending, and I always felt a little bit like I wanted to try a different version of that story.
On a daily basis, you're working with Steve Carell; you're not working with Ricky Gervais. You try a line, and you can't be writing for David Brent. You have to be writing for Michael Scott because Steve is Michael Scott.
When you do something unusual, the audience doesn't 100 percent know what you're up to in the beginning. And if you're doing a character comedy, they haven't learned the characters yet.
I would encourage people that, if you are waiting for the end of 'The Office,' to re-tune in right away. It is the beginning of the end, where we start to break down what's going on with this documentary and see behind the scenes with who is involved.