The tech part is easy, relatively speaking.
The hard part is each plant can have hundreds of workers whose entire jobs depend on the way things are set up. It can be hugely expensive, time-consuming and disrupting for months to try to replace processes with new ones, particularly if you expect things to continue running without interruption. It's one of those rebuild-the-airplane-while-flying-it situations.
Maybe this was a uniquely lucky situation, because it doesn't sound like a generalizable magic-bullet to me.