You’re right,” I say. And then, “It’s a little odd to call the market or the system of material release a bottleneck. Why don’t we change the word, to . . .” “Constraint?” Stacey suggests. We correct it on the board. Then we just sit there admiring our work.

For a foreman, heat-treat seems like a very small kingdom, not much of a prize. There is nothing intrinsically attractive about running that operation, and having only two people to manage makes it seem like no big deal. To prevent it from seeming like a demotion to them, I make a point to go down there periodically on each of the shifts. In talking to the foreman, I drop some rather direct hints that the rewards will be great for anyone who can improve the output of heat-treated parts.