Use different methods and tools like problem solving tools, time studies, Kaizen, SMED, Tags, SOP, OPL, 7 WCM Tools (Prioritization, systematic, logical and detailed deployment of objectives, problem description with sketches, 5W+1H with 5G principles, Root cause analysis (4M+1D and 5 Whys), phenomena description with sketches, TWTTP (The way to teach people) and HERCA (Human Error Root Cause Analysis), 3M (Muri, Mura, Muda), line balancing. The Value Stream Manager (VSM) leads efforts to optimize an entire product or service delivery process (the "value stream") from start to finish, focusing on efficiency, waste reduction (Lean principles), and maximizing customer value by aligning cross-functional teams, mapping processes (current vs.