morassutti is aware of the limitations of academic training for a new course in architecture, and decides to start research in teliesin, arizona in the united states, with frank lloyd wright in the 1940s. research with wright will have a poetic development and dialogue in many of his future creations of strong identity. the researches with wright in an artistically unknown america in italy will continue for years both in arizona and in wisconsin, also comparing themselves with other designers such as auguste perret, richard neutra in california, ludwig mies van der rohe in chicago to then reach his own and totally avant-garde italian rationalist system upon his return to italy, although open to different types of contaminations that created a concept of avant-garde design that is unique in the world.