The fourth option, (d) there were no bad practices is also possible. The fact that the did not get their design reviewed may be normal in that industry. The saf

The fourth option, (d) there were no bad practices is also possible. The fact that the did not get their design reviewed may be normal in that industry. The safety issues in 2007 may well have been addressed and in any case, it's not clear they are related to the current issue. The fact that some important employees have recently quit is suspect, I agree. But we don't know why they have quit, do we? Maybe the were not happy with their salary or there were other personal reasons. This is worth investigating, though. EDIT: I just read the article and there seem to be plenty of other warning signs.