This chapter explores agents who are influential in terms of inquiry lesson-learning but have not been examined before in inquiry literature. The key argument is that two types of agent—policy refiners and street-level bureaucrats—are important when it comes to the effectiveness of post-crisis lesson-learning. As they travel down from the central government level, street-level actors champion, reinterpret, and reject inquiry lessons, often because those lessons do not consider local capacities. Policy refiners, however, operate at the central level in the form of taskforces, implementation reviews, and policy evaluation processes. These refiners examine potentially problematic inquiry lessons in greater detail in order to determine whether and how they should be implemented. In doing so, these ‘mini-inquiries’ can reformulate or even abandon inquiry recommendations.