This article sets out to explain how practical wisdom, supported by rationality, can play a fundamental role in management and combat the main problems of rule-following and hyper-codification. The systematic use of Big Data, collected via the ever-increasing adoption of technology, has generated a large increase in the degree of standardisation of company procedures concerning not only physical and technical issues but above all decision-making. Applied to the solution of repetitive, easily codified problems, standardisation increases the level of efficiency, but when used for the resolution of complex problems it may partially, or even completely, preclude the pursuance of the common good. This may occur through the setting of rules which are not capable of fully describing reality, and their inappropriate use, which may lead, through their unthinking application, to a lack of morality, and even to the side-lining of earnings opportunities. We believe that practical wisdom is able to interact with necessary, unavoidable codification systems and rules to provide the right interface with circumstances, becoming a part of the decision-making process in its own right and not just a viewing lens for use retrospectively to verify whether the outcomes of decisions taken have been effective in pursuing the common good.