Criticism is concerned with evaluation. There may be evaluative principles implicit in this or that form of theory, but theory in and of itself is not prescriptive.
Paul FryI do identify the escape hatch through which Foucault eludes the charge that he himself is an author/authority, hence a tyrant. He establishes the category of "founder of discursivity" for the authors he likes. Slippery, perhaps, but you can see what he means.
Paul FryBoth the 18th and the early 20th centuries, however, feature brilliant attacks on originality, and it's no doubt one of the hallmarks of romanticism to care about originality and suppose with a sometimes naive spontaneity that it's all that matters.
Paul Fry