A Search is a terrible thing to waste! One Test is Worth 1000 Expert Opinions - The plural of anecdote is not data.
We can't solve problems by using the same kind of thinking we used when we created them. - Unknown
I would venture to say that none of the big three will abandon their specific requirements. Ford won't let go of its QOS and Q1 program. GM will not abandon their GM-9000 (aka Targets for Excellence) and Chrysler - well, Chrysler --- who knows...