Give the project access to a visible, high-level manager, who champions the cause of the project
The Patron role is not to be a totally centralized control, but rather a champion. That is, the scope of the Patron's influence is largely outside those developing the product itself, but includes those whose cooperation is necessary for the success of the product (support organizations, funders, test organizations, etc.). This role also serves as a sponsor; the person is often a corporate visionary.
The Patron should be able to persuade all stakeholders to co-operate, and where this is not possible, to instigate alternative approaches. Frequently the Patron is the original visionary behind the project, on other occasions he may have been persuaded to adopt a project.