The article highlights how public contracts are a crucial variable for the future of the government administration but at the same time represent a great challenge due to their complexity of the subject and the difficulty of in regulating them it in a simple yet effective way. The text article focuses on the many interests that the public administration has to consider when awarding contracts and how the new procurement Aact tries to combine a more streamlined discipline approach with the pursuit of the objectives of legality and transparency. The difficulty of achieving this goal can be seen is testified byin the recent experience of the UK legal system, which after Brexit is in the process of adopting a reform of public contract law that, despite the declared political intentions, still has many aspects in common with European and continental law.