The previews were disastrous, as the audience could not hear with the orchestra scattered around the edges of the theatre. Despite attempts at amplification, the acoustics were still bad in the hollowed out theatre. The director and choreographer resigned, to be replaced by Tom O'Horgan, who had directed "Hair" and "Jesus Christ Superstar". Previews were shut down, and the show went back into rehearsal. Some cast changes were made, and flamboyant visual effects were added. The director and cast confronted Ragni and forced him to rewrite scenes, including most of the second act. Actors wrote some of their own dialogue. The script finally settled down, mostly, by the second to last preview.