> rotated out to take the blame for mistakes.

companies cannot rotate people out to take the blame - the company would have to suffer a fine for there to be a punishment.

Right, but companies routinely accept fines as costs of doing business, while losing your job can destroy your life. If a company has not taken appropriate measures to ensure employees can reasonably catch errors at the rate they are required to work, then the company should take all the blame, because they are choosing to push employees to take risks.