""I found the book really inspiring. After years of frustration with organisations attempting then eventually failing to properly consider all of the multitude of factors involved in cost to serve this book finally gave me some hope that it is not an impossible task and that if people and organisations were to carefully and methodically work through the stages as you have described them they can finally get to a real understanding of what it is really costing the organisation to deliver their services."" Gavin Halligan-Davis Gavin is a subject matter expert in performance management and analysis. Throughout his career, he has held numerous interim leadership positions ranging from director to consultant, demonstrating his extensive experience and versatility in the field.