When the film was completed, Hillenburg wanted to end the series "so it wouldn't jump the shark". However, Nickelodeon desired more episodes; Hillenburg stated: "Well, there was concern when we did the movie 2004 that the show had peaked. There were concerns among executives at Nickelodeon." As a result, Hillenburg resigned as the series' showrunner, appointing writer, director, and storyboard artist Paul Tibbitt to succeed him. Tibbitt was one of Hillenburg's favorite crew members: " totally trusted him." Tibbitt would remain showrunner until he was succeeded in 2015 by the show's creative director Vincent Waller and staff writer Marc Ceccarelli. He also acted as an executive producer from 2008 to 2018. Hillenburg no longer wrote or ran the show on a day-to-day basis, but reviewed each episode and submitted suggestions: "I figure when I'm pretty old I can still paint I don't know about running shows." Kenny, Fagerbakke, and the crew confirmed that they had completed four episodes for broadcast on Nickelodeon in early 2005, and planned to finish a total of about 20 for the fourth season. In 2015, Hillenburg returned to the show following the completion of the as an executive producer, having greater creative input and attending crew meetings until his death on November 26, 2018.