Kick-starting collaborative initiatives around tangible projects on key public services can help rally forces at the initial stage and progressively lead to setting a “bigger picture”, as success breeds further success and trust (OECD, 2015a). Flagship projects or events can also serve as catalysts for social change and stakeholder engagement. For example, the Capital of Culture experience in Marseille brought the society together in an unprecedented way. In a context of extremely high institutional fragmentation, this project laid a major foundation for the construction of the new metropolitan authority, which became operational on 1 January' 2016 (Box 5.16).