Twenty years ago, tired of the Minnesota winters, I interviewed for a job with a largish aerospace shop in Austin, Texas. The owner was looking for a general manager, and George, the recruiter who set up the interview, warned me that there might be some tough questions. He was right. I did pretty well until almost the end of the interview. “If you get the job, what’s the first thing you’ll do to increase productivity in my shop?” the owner asked. It was an unfair question. After all, I’d never seen his shop, so how would I know what needed fixing? In hindsight, I should have told him as much. But I assumed that his shop was much like most shops back then: plagued with hourslong setups, wasted motion and downtime.