In this publication trendy pragmatism coincides with the improvisation of jazz music. The result is a plan of action to constructively deal with disorder in urbanism. Improvisation acknowledges disorder and works with existing potentials. Improvisation means, therefore, to work with reality but at the same time, create reality. In a time where diverse life forms and rational principals coexist, urbanism becomes more and more inoperative. As the urban becomes even more complex, we have to begin to reflect upon how orders are created and negotiated.