Also, I had no idea the creator of the show left after the fourth season. That explains the sudden drop off and subsequent descent in the quality of writing on the show.
The show was developed by James Manos, Jr., who ran the show in the first season. Philips (who joined midway through season one) became the showrunner beginning in the second season.
Ultimately the show had four showrunners:
James Manos, Jr. (season 1)
Clyde Philips (seasons 2-4)
Chip Johannessen (season 5)
Scott Buck (seasons 6-8)
Honestly, I'd say the show dropped in quality each time the reins changed hands.