[PhantomGremlin]

When it was Toyotas fictitious problem it came down to a bunch of old people.

Yeah, right. Blame it on "old people". Certainly not the code base with 10,000 global variables:

The design review found things like: Other egregious deviations from standard practice were the number of global variables in the system. (A variable is a location in memory that has a number in it. A global variable is any piece of software anywhere in the system can get to that number and read it or write it.) The academic standard is zero. Toyota had more than 10,000 global variables.

[1] https://news.ycombinator.com/item?id=19613055 That original link is now broken. I don't think Toyota paid to scrub it, probably just decay.