Concerning "Theory for performance studies" / Richard Schechner, Timothy K. Beal and William E. Deal, Talia Rodgers, Claire L'Enfant, Judith Butler, Marvin Carlson, Tracy C. Davis, David Savran, Shannon Jackson, Branislav Jakoljevic, Jill Dolan, Philip Zarrilli, W. B. Worthen, Joseph Roach, Peggy Phelan