Original sentence: Executive producer David Chase served as show runner and head writer during the production of all six seasons of the show.He is known for being a very controlling and specific producer.In addition to writing several episodes per season, Chase would oversee all the editing, consult with episode directors and do extensive but uncredited re-writes of episodes written by other writers
Edited sentence: Creator and executive producer David Chase served as show runner and head writer during the production of all six seasons of the show.He is known for being a very controlling, demanding and specific producer and contributed significantly to every episode.In addition to writing several episodes per season, Chase would oversee all the editing, consult with episode directors, give actors character motivation and do extensive but uncredited re-writes of episodes written by other writers