 Noonan, Andy Collins, Mike Mearls, and Jesse Decker were part of Rob Heinsoo's "Flywheel" design team for the fourth edition of "Dungeons & Dragons", and did the final concept work from May 2006 to September 2006, before the first books for the edition were written and playtested.Noonan was one of the eVoices of Wizards on the "D&D" podcast.On December 2, 2008, Noonan was laid off from his employment with Wizards of the Coast.