Since the 1960s of the 20th century, research on the success of projects have been updated and are increasing in cyclical projects (event-centered projects) which appear regularly in excess of budget, or even sometimes incomplete when the event or subject of their creation is over. Within this context, with the appointment of Constantine as the Arab Capital of Culture 2015, the Algerian Government has registered 76 rehabilitation projects for the old buildings of the city, under the guardianship of the Ministry of Culture. The last has designated the Office National de Gestion et d’Exploitation des Biens Culturels Protégés (OGEBCP) (National Office for the Management and Exploitation of Preserved Cultural Property) as a contracting authority assistant, given its considerable experience in building management in the city of Tlemcen, Capital of Islamic Culture in 2011. During our investigation, none of the selected projects has been completed, while the allocated budget has been entirely consumed. Why? Who is responsible for this failure? Our role is to investigate the weak links in these rehabilitation projects to avoid future similar failure. It seems like the success of a project depends on the behavior of the main actors responsible for it as well as a number of technical skills that seem difficult to bring together in a single individual. Therefore, we focus on the actors of the project. The process of conservation operations is a delicate one to conduct for the success of the project. The conditioning of shorter deadlines in full event-centered projects is in fact one of the most difficult challenges. We propose to analyze the management of communication between the project actors assuming that, an inappropriate management could have negative impacts on the success of the project. Our intervention sheds the light on the program for the rehabilitation of the Old City of Constantine, the Arab Capital of Culture 2015, by reviewing the management of communication between the actors and, in particular, its link with the success of the project of rehabilitation in the context of the event. The methods have been exploratory in nature and explanatory. The interview and field observation have been used as investigation instruments.