Everyone has an agenda. But actually, different objectives and resources can make for a stronger partnership if they are complementary and made known. It is hidden agendas that get in the way. So civic partners should not be surprised if the artists expect to be fairly paid. Nor should artists be surprised if they must yield the stage to a workshop leader.
Collaborations involve new relationships.
It takes time to sort out who will do what, how decisions will be made, and who will follow through. In a gathering of leaders, don't be surprised if there is jockeying for leadership. Take time to get acquainted and build trust. Do a simple project together before you commit to a major one. Especially in a new partnership, tasks need to be explicitly matched with those responsible for them.