As pointed out by Lawrence B. Mohr, the early theorists of organizational structure, Taylor, Fayol, and Weber "saw the importance of structure for effectiveness and efficiency and assumed without the slightest question that whatever structure was needed, people could fashion accordingly. Organizational structure was considered a matter of choice... When in the 1930s, the rebellion began that came to be known as human relations theory, there was still not a denial of the idea of structure as an artifact, but rather an advocacy of the creation of a different sort of structure, one in which the needs, knowledge, and opinions of employees might be given greater recognition." However, a different view arose in the 1960s, suggesting that the organizational structure is "an externally caused phenomenon, an outcome rather than an artifact."