It all starts with you. You lead the way. You set the goals and make sure all the work is aligned. You model the culture of learning and innovation. You champion the vision for the "process driven organization". 

You build the environment for success. You establish good processes and set up PMOs. You support and monitor projects. You motivate your staff and make sure they have the right skills.

You make it all happen. You  make sure that the projects meet business needs and expectations. You constantly look for better ways to do things. You ensure your skills evolve as the business and technology evolve.