First, management may mistakenly believe that improvement is a “natural” process or that it can be accomplished by pressure or incentives alone. As Frank Gilbreth pointed out in 1909, bricklayers had been laying bricks for thousands of years with essentially no improvement in tools and technique.5 By carefully studying the process, Gilbreth was able to more than double productivity without increasing anyone’s workload. By moving the supply pallets of bricks and mortar to chest height, hundreds or thousands of separate lifting movements per day by each bricklayer were avoided. By using a
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