In this paper, I would like to report on my job experience as a business consultant in Japan. In 2001, I worked in a corporate main-system implementation project in a Japanese traditional chemical company. That project was made up by 4 teams (Accounting, Budgeting, Production control, and Procurement) and each team had about 10 or 12 staff, and it totaled around 50 people. (Fig. 1) I was assigned in Production control team and functioned as a progress management staff. In the project, there had a weekly-meeting to discuss challenges and to check progress of each team. …