Purpose – In project management, the appreciation of the behavioral and interpersonal dimension that interacts with subordinates is to be considered as crucial factors within project sustainability. Therefore, the ability to exercise leadership is not necessarily an asset, if it is not immediately coupled with managerial skills. The intrinsic qualities that a leader should possess in order to exercise his mandate will vary depending on the intended mission. Design/methodology/approach – The study relies on a quantitative method. Such method purpose lies in the description, explanation, ...