Big Thunder Mountain broken by negligence

Looks like the fatal crash on Disneyland's Big Thunder Mountain was the result of poor maintenance. Disneyland's maintenance has been suffering ever since a group of McKinsey and ex-McKinsey consultants advised them to save money by cutting back on preventative maintenance and forcing out experienced, senior cast-members. Management consultants: is there anything they can't screw up?
"Our own analysis found that the accident was caused by incorrectly performed maintenance tasks required by Disneyland policy and procedures that resulted in a mechanical failure," said Leslie Goodman, senior vice president of strategic communications for Walt Disney Parks and Resorts.