"schedule before quality"
They actually messed that up - the saying is "Quality is King, but Schedule is GOD". Except that is nothing new - we were making that joke at least 25 years ago (and I bet it pre-dates that - it's just that 25 years ago is when I got to a position where I was exposed to it - in of all things a class on "continuous quality improvement").
At some point, schedule drives pretty much everything - if it was left up to the designers we'd never deliver an airplane because the designers never stop perfecting their designs (another old Boeing say - 'there comes a time in every project where it becomes necessary to shoot the engineers and start production").
But I've never heard of safety being compromised to meet schedule.
BTW, there is a lot of informed speculation around Everett that the anonymous SC employee that was the source of all that hidden camera stuff wasn't really a SC employee, but one of the union machinists sent down from Everett to help the 'new guys' learn the ropes - and he was specifically trying to make the non-union SC guys look bad