The article establishes the fact that the project portfolio management increases the diffusion between the managerial roles and this is the reason that there has been the evolution of a new managerial role of Project Portfolio Management. The paper makes it clear that the roles change significantly between all the managerial posts and the possibility of the brewing new tensions between the traditional system between the lead managerial posts and the new roles that has been set up for the reduction of the overall performance of portfolio management. The article enunciates that this managerial involvement in complex project management can impact the portfolio both positively and negatively affecting the success of the project portfolio management as a whole.