Taiichi Ohno, an executive at Toyota, led the development of the concept of the Gemba Walk. The Gemba Walk is an opportunity for staff to stand back from their day-to-day tasks to walk the floor of their workplace to identify wasteful activities. The objective of Gemba Walk is to understand the value stream and its problems rather than review results or make superficial comments. Along with Genchi Genbutsu or "Go, Look, See", Gemba Walk is one of the 5 Lean guiding principles that should be practiced by Lean leaders on a daily basis.