Project-focused structures in infrastructure endeavors involve the execution of simultaneous efforts with shared resources. This research highlights to what end such organizational structure is complex to manage. The study focuses on project governance structures' impact over project-oriented organizations, particularly by exploring the ineffective co-operation/interaction between project(s) and the program. The paper is based on a single case study carried out at a Railway Infrastructure Companies' programs located in Northern Europe, involving two embedded projects. From the study, it becomes possible to understand the relevance of the governance approaches in projects and programs. Moreover, some guidance is proposed in order to help in the accommodation procedure.@en