This article aims to question two of the typical methodological tools of constitutionalized systems: the balance and the concretion of principles. The article begins explaining the regulatory context of the constitutionalization, to then present a certain conception about legal principles. The central part of the work is devoted to analyze three reasons about why we should abandon or drastically limit the use of both instruments, especially in the field of constitutional courts in favor of a more deferential approach to the legislator. Finally, it concludes presenting a possible alternative: a precedents system.