The Lean manager as a mentor in the process of problem-solving in the A3 Thinking approach

Purpose: The purpose of this study is to gather information on how Polish managers operating in a Lean environment, using mentoring, develop competences related to the application of the A3 Thinking approach among their employees, and how they themselves acquired the competences of mentors, what makes it difficult for them to work with their mentees and what benefits of mentoring they perceive. Design/methodology/approach: To answer the research questions raised, the author conducted a literature review and a qualitative research – multiple-case studies. As part of the qualitative study, five in-depth interviews were conducted. Findings: The main contribution of this study is to provide information on mentoring in the problem-solving process in the A3 Thinking approach and the experiences of mentor-managers. However, they can be used as input data for the design of training and mentoring programmes in the process of learning the A3 Thinking approach. Research limitations/implications: Subjectivity of the analysis, owing to the application of a qualitative approach in the studies. Future research may be connected with creating a mentoring programme in the studied area. Practical implications: The study results can be used as input data for the design of training programs and mentoring programs in the studied area. They can also act as a guidepost and motivation for Lean managers. Originality/value: The literature review shows a small number of scientific publications that contain an approach to mentoring in the problem-solving process in the spirit of A3 Thinking. This publication may provide input data for managers wishing to improve the effectiveness of the problem-solving process.