Despite considerable advances in scholarship—achievements on which this essay builds—our knowledge of how eighteenth-century theatres were run remains worryingly thin. The managerial enterprise of theatre production, especially its daily practicalities, is largely obscure, though the facts of performance history are well documented. Knowledge of practice is not our only lacuna. Accounts of the interfaces among performances, institutional theatre practices, and the wider culture of the eighteenth century are too few, though wonderful work has been produced by Jane Moody, Felicity Nussbaum, and Gillian Russell, among others. This meager situation has arisen in part, as Robert D. Hume has argued, because scholars have yet to fully engage with those sources that have survived, although problems of missing evidence are serious and sometimes insurmountable. A related problem is that theatre historians are often averse to conceptualizing what they discover, as if analysis and certain modes of theoretical interpretation were the responsibility or more distinctly the failing of literary critics. But the discovery or reappraisal of an archive will only advance scholarship so far. New information about rehearsals, performances, finances, or contracts is vital, but it does not explain the motives or institutional momentum that animated theatre production. We need to know why some actors were favored by management while others seem to have been less well supported. It would also be useful to understand more precisely why some plays were performed repeatedly whereas others appeared only sporadically. The information contained in the London Stage should be crucial for theatre history, yet the repertoire of the patent theatres remains understudied. The impetus it gave to managers is too often ignored, while its political significance is barely understood, prompting justified complaint from Daniel O'Quinn. Great care will be necessary when addressing these issues. Overly general or prescriptive claims are probably best avoided; there are simply too many local factors. We should also recollect that theatrical production is necessarily a collective endeavor, a process in which many voices might be heard. Yet patterns and purposes can be found, even when what is most apparent is what Michel de Certeau terms the “‘polytheism’ of scattered practices.”