Oracle ERP is just as bad.  At $job-2 they spend $500m and 5 years to get zero modules of Oracle Retail installed and eventually decided to just continue on with the mainframe legacy systems.<p>The latest Software Engineering Radio has an excellent discussion of the topic of large scale IT failure aka black swans: <a href="http:&#x2F;&#x2F;www.se-radio.net&#x2F;2016&#x2F;02&#x2F;se-radio-epislode-250-jurgen-laartz-and-alexander-budzier-on-why-large-it-projects-fail&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.se-radio.net&#x2F;2016&#x2F;02&#x2F;se-radio-epislode-250-jurgen...</a>