Flow ◾ 69
done over the weekend? That’s the nefarious aspect of living
on your smartphone 24/7, your willingness to work on week-
ends and give up your holidays: You effectively raise the water
level by increasing the amount of time you have to accomplish
your work.
When a factory doesn’t have inventory (of parts) to mask
production problems, workers are forced to solve the problems
in the production process. If you cut your inventory (of time),
you’ll be forced to address the root causes of inefficiency in
your own production process.
To go one step further, the need to stay late or work on
weekends should actually trigger an analysis of what’s gone
wrong with your production process. If you’ve been success-
fully managing your work in 45-ho ...