 Literary analyses of a work of dramatic literature that happens to get used as a script may or may not be useful for performers. The content of a theatrical performance is not fully governed, deliverable, nor retrievable by a written text. Texts—which are relatively “thin”—are underdetermined by performances (Ball 1983; Worthen 2007, but see Goodman 1968: 210–211 for a contrary view). If this is right, a quite different set of standards for measuring the achievements of performances, per se, is required.