Rensis Likert, a prominent organizational psychologist, proposed four management systems (System I to System IV) to categorize different organizational cultures and leadership styles. His statement suggests a prescriptive path for organizational development, advocating for a transition from less effective, authoritarian systems to highly effective, participative ones.

Likert's four systems are:

• System I (Exploitative Authoritative): Characterized by fear, threats, top-down communication, no trust, and centralized decision-making. Employees have no say and are exploited.
• System II (Benevolent Authoritative): Still authoritative, but with some paternalistic concern for employees. Rewards are used, but decisions remain centralized, with minor delegation.
• System III (Consultative): Managers consult employees, consider their ideas, but retain the right to make final decisions. There is some trust and communication.
• System IV (Participative Group): High trust, open communication, decentralized decision-making, group problem-solving, and shared responsibility. Employees are highly involved and motivated.

Likert firmly believed that System IV is the most effective and productive system, leading to higher morale, productivity, and better organizational performance. He argued that organizations should strive to move from System I towards System IV.

Commentary on Likert's Statement: While Likert's advocacy for System IV highlights the benefits of participative management, the prescriptive nature of the statement – that every human organization shall ultimately end up there – warrants critical examination.

Strengths of Likert's Proposition:

1. Emphasis on Human Relations: Likert's work significantly contributed to the human relations school of thought, emphasizing the importance of employee motivation, satisfaction, and participation for organizational success.
2. Clear Continuum: The four systems provide a clear and understandable continuum for assessing and developing organizational culture and leadership.
3. Positive Outcomes: Research generally supports the idea that more participative and supportive management styles (like System IV) tend to lead to higher employee engagement, innovation, and overall organizational health in many contexts.

Limitations and Nuances:

1. Context Dependency: The 'best' management system is not universally applicable. Certain organizations or situations might necessitate more authoritative approaches. For instance, in crisis management, military operations, or highly standardized production environments, a more directive style might be temporarily or permanently more effective.
2. Difficulty of Transition: Moving from System I to System IV is a profound cultural transformation, requiring significant leadership commitment, time, and resources. It involves changing deeply ingrained behaviors, power structures, and communication patterns, which can be challenging.
3. Idealistic Nature: System IV, while desirable, can be an idealistic state that is difficult to fully achieve and sustain in practice, especially in large, complex organizations with diverse workforces and competing interests.
4. Oversimplification: Real-world organizations often exhibit a blend of characteristics from different systems, or their optimal system might evolve over time based on internal and external factors.

In conclusion, while Likert's statement provides a valuable aspirational goal for fostering more humane and productive workplaces, the assertion that every organization shall ultimately reach System IV might be too rigid. The optimal management system is often contingent upon various factors, including organizational size, industry, task complexity, employee characteristics, and cultural context. However, the general direction towards greater participation and trust, as championed by Likert, remains a widely accepted principle for modern organizational development.