How is it possible for a show to go from drawing the biggest opening ratings ever for a network to cancellation in one season? That's easy: a breakdown in creative differences between the host and his cast.
Unfortunately for Jeff Dunham, his cast is a bevy of inanimate puppets that he controls. So when creative differences break down between him and his cast, it's probably due more to a breakdown in cognitive faculties and a lack of strong anti-psychotic drugs than creative differences.
Comedian Rob Lathan explained just how such a thing can happen in this Funny or Die video.