• Management Concepts and Thinkers Matching:
• Learning Organization $\rightarrow$ Peter Senge: Codified in his landmark 1990 book The Fifth Discipline.
• Core Competence $\rightarrow$ C.K. Prahalad & Gary Hamel: Published in Harvard Business Review (1990).
• Re-engineering $\rightarrow$ Michael Hammer & James Champy: Published in Reengineering the Corporation (1993).
• In Search of Excellence $\rightarrow$ Tom Peters & Robert Waterman (1982).
• Competitive Strategy $\rightarrow$ Michael E. Porter (1980). Therefore, pairing “Competitive strategy - Peters & Waterman” is incorrectly matched, making Option 4 correct.

Correct option: (4) Competitive startegy- Peter & Waterman

• V.A. Graicunas' Theory of Span of Management:
• The classic formula determining the span of management (span of control) was developed by French management consultant V.A. Graicunas (1933) in his Theory of Relationships.
• Graicunas mathematically proved that as the number of direct subordinates ($n$) increases arithmetically, the number of potential interpersonal relationships increases exponentially:

• This incorporates direct single relationships, cross relationships, and direct group relationships, demonstrating why executive spans must be kept within manageable limits (typically 3 to 7).

Correct option: (2) Theory of relationship

• Training Methods and Creative Experimenting:
• In adult training pedagogy (Rolf Lynton and Udai Pareek), the Laboratory Training Method (T-groups, simulation labs, experiential human laboratories) provides the highest opportunity for “creative experimenting”.
• Trainees are placed in an unstructured, non-threatening micro-environment where they actively experiment with novel leadership styles, communication behaviors, and collaborative approaches and receive immediate peer feedback.
• Distractors: Lectures and seminars offer low to passive experimentation; individual reading lacks interactive behavioral experimentation.

Correct option: (2) Laboratory