Collaboration is the biggest word in the theatre. It is the most important element in theatrical success… the theatre is a welding of many arts into one. No one person can be efficient or talented in all of these arts, and if any man could write and produce and direct and act and play the music, shift the scenery, design the costumes and, in short, do everything that could be done on one stage and come up with what was literally a one-man show, he would still need one more thing: an audience. You cannot get away from collaboration.
— Oscar Hammerstein II