  Many philosophers take such structural requirements at face value, granting that practical reason is rightly governed by and responsive to these wide-scope demands. Indeed, it has influentially been argued that standards of good reasoning, in both the practical and the theoretical domain, derive exclusively from structural requirements of rationality of this kind (Broome 2013). But questions arise about this approach. For one thing, reasoning has a kind of directionality that is hard to make sense of solely in terms of the ideal of compliance with wide-scope requirements. Thus it isn’t good reasoning to give up the intention to achieve end E solely because one lacks the intention to take the necessary means M, even though, as we have seen, revising one’s attitudes in this way brings about compliance with the wide-scope requirement.