BPR quickly became a management fad, similar to (JIT) inventory
management.
BPR and JIT were both based on assumptions. And if those assumptions
were not met,
then they failed to achieve the great expected results.
That is, BPR
was not understood enough and was applied incorrectly, with terrible results. Many
JIT implementations increased inventory costs because JIT was based on the assumption
that warehousing costs were extremely high, as they were in Japan, where JIT
the great expected results.