Sacred cows gobble up ERP benefit!

I’ve come to the conclusion (slowly) over the last five years that we assume that if an ERP software package works and users know how to use it, the business benefits will start to flow to the bottom line.
We’re wrong.
The business benefits flow to the bottom line only when we change the business rules (processes, procedures, paradigms, beliefs, etc.) to take full advantage of the new capabilities ERP brings to the business.
Said a different way: Sacred cows gobble up much of the benefit ERP might bring!