At one place where I worked, a "foreign designed" product was being built in the US.
The "foreign" department manager had an "executive assistant" whose entire job was to process "green cards" to extend the permits for existing "foreign" workers and to add as many new ones as possible.
There were two "non-foreign" engineers in the department.
Since documentation on the product was slightly "incomplete" it did NOT MEET US CERTIFICATION REQUIREMENTS but was "grandfathered in" based on the foreign certification.
The missing documentation could have been supplied with perhaps 100 hours worth of decent engineering, and production and maintenance would have been greatly simplified, but the needed corrections were REFUSED in order to "keep the product all foreign" to justify keeping lots of "greenies" employed.
With the corrected documentation, three engineers would have been sufficient; but this manager kept an average of about 18 on hand.
While the 16 "foreign" engineers did technically competent work, the problem was that with the defective documentation it was incredibly difficult to tell what parts were used in a specific product. (That's the missing requirement for US Cert.) As a result, for the last 50 or 60 "squawks" I worked, on average the same product complaint had been fixed at least three times, a third of them had been fixed five times, and one had had EIGHT prior fixes. The fixes were all "good engineering" but, unfortunately, the parts that were fixed were NOT THE ONES IN USE ON THE PRODUCT that needed the fix.
I was concerned that telling a pilot that his complaint about a defect had been fixed when in fact the "fixed part" was left behind on a bench somewhere and the defective one was still on the airplane he was flying "might be a safety hazard." After getting firm refusals to make any correction (and complaints about my taking too long to do my own fixes - which usually required pulling at least 300 documents (in one case 842) to find a "most probably used" part on the actual airplane, I QUIT.
They probably requested at least 6 more green cards to replace me.