Public projects are in abundance in Morocco, demands investment in infrastructure and the contracts of public-public and public-private partnership, but also the concession forms of public service management brought a field of application tools project management. In this sense, it is in this paper together two fields or device management organizations are a major challenge for our research namely public management and project management. We\'re trying to understand it and building a framework of theoretical and conceptual analysis to further search for explanatory factors of recourse accelerated technical and project approach in public practice in Morocco, especially the era of mega-projects and complexity.