1) Lean manufacturing requires both industrial engineering and operational discipline to succeed. Industrial engineering focuses on designing efficient manufacturing systems while operational discipline ensures consistent execution of operations. 2) Without operational discipline, lean improvements cannot be sustained and estimated benefits will not be realized due to deviations from standard work. 3) The author offers consulting services to help manufacturers achieve operational excellence through principles of lean, six sigma, and agile manufacturing. This includes reducing costs, increasing throughput, analyzing business cases, and ongoing process improvement support.