text: Seasons 11–14 During the final four years of the show, Leonard Katzman remained showrunner, with series star Larry Hagman joining him as executive producer (beginning with season 12) and Ken Horton as co-executive producer (as of season 13).
  Supervising producer Calvin Clements Jr. left the show after season 10, and was replaced for seasons 11 and 12 by the returning Arthur Bernard Lewis, who remained a writer on the show until its end. Lewis was thus reuniting with Leonard Katzman and David Paulsen. However, Paulsen left Dallas at the end of the 11th season (to join rival soap  Dynasty), and was replaced as the show's producer first by Howard Lakin for season 12, and then by longtime associate producer Cliff Fenneman for the final two years. Lakin spent seasons 13 and 14 as supervising producer.
  Mitchell Wayne Katzman was promoted to co-producer as of season 12, while Frank Katzman (the other son of Leonard Katzman) and John Rettino (Leonard Katzman's son-in-law), served as associate producers during seasons 13 and 14. Additionally, Katzman's PA Louella Lee Caraway was credited as executive coordinator for the final three seasons. The final major addition to the staff was Lisa Seidman, who joined the show as executive story consultant for the final two seasons.