Technical insight clearly lies at the heart of well integrity assurance systems but in this paper we highlight another important and often overlooked aspect of well integrity assurance, namely the organization and application of these skills. Ensuring that all relevant skills are effectively organized can also be of great help in enhancing well integrity capabilities. This often involves the set-up of a single coherent well integrity unit, ensuring full alignment of interfaces, processes and management systems to give senior management comprehensive assurance that well integrity will be successfully managed on their watch.