According to the Hollywood Reporter:
The top producer on ABC’s hit comedy-drama “Desperate Housewives” walked off the job late last week and may be replaced next season.
Tom Spezialy, the show’s executive producer/ showrunner, exited Friday after an unspecified falling out. According to sources, things calmed down over the weekend. With only a few days of production left on the series’ second season, Spezialy will return to work on Monday, said a spokeswoman for Touchstone TV, which produces the series.