Consulting firm sued for $172M over ERP implementation 'disaster'

I'm sure some ERP implementations go smoothly, but I've never heard of one.

About 10 years ago, I arrived at a company in the immediate aftermath of a failed implementation. There were many contributing factors, many of which I'm sure are common to other projects gone awry.

Is this problem as prevalent as it seems? How have these firms not developed a better methodology to avoid the most common pitfalls?