One of the biggest victims of the change looks like being the famed kaizen (step-by-step improvement) system that was pioneered by Toyota in the 1970s and has been treated as gospel by manufacturers throughout Japan ever since.
The Swiss Socialist party "deplored" the result, saying that better protection against passive smoking would have "incontestably been a major step in the improvement of (workers') conditions".
Although the first set of results shows the benefit to customers, Cohen says, the next step is to explore PBC's impact on suppliers by analyzing what drives the improvement in reliability and how much it costs suppliers when the responsibility to manage the contracts falls more heavily on them than on their customers.
"Whilst there are many dedicated and hard working staff at Maghaberry, there is substantial room for improvement and I have already made clear to the new governor that there has to be a step-change in the way the service is delivered at this prison, " he said.