Is monsters Inc based on a true story?

Monsters, Inc. is a computer-animated comedy film written by Jack W. Bunting, Jill Culton, Peter Docter, Ralph Eggleston, Dan Gerson, Jeff Pidgeon, Rhett Reese, Jonathan Roberts, and Andrew Stanton. It's said that the original idea for the screenplay was based on the childhood experiences of one of the Pixar crew, who had a bunch of toy monster figurines as a child. The original screenplay was about a man who is an advertising designer and leads a very boring life. He is afraid to take risks and feels that his career is at a dead end. When his mother cleans out the attic and sends him his box of toy monsters, who were also his childhood Imaginary friends, the monsters -- Mike, Sulley and Randall -- once again become his imaginary friends and inspire him to regain the creativity and sense of adventure he had as a boy. Obviously, the original idea went through a lot of revisions before it became the movie on the screen

http://www.imdb.com/title/tt0198781/faq#.2.1.5