Before teams undertake the challenging task of collaborating on a temporary or permanent project, they need to ascertain whether they are all reading from the same metaphoric sheet of music. This assessment instrument enables teams to determine whether they have reached the readiness point at which optimal performance takes place. The instrument affords insights into the specific aspects of their collective functioning that may require fine-tuning, by addressing four dimensions of team effectiveness: Goals, Roles, Interpersonal Relationships, and Procedures.