In politics if anything goes badly wrong the buck stops at the...

In politics if anything goes badly wrong the buck stops at the top and the responsible minister stands down. This has also been the case with blue chip stocks, the chairman or the responsible director steps down.
The recent examples of Prime Ministerial changes also illustrates the point that sometimes it takes a proverbial knifing to achieve the result. Bronnie is another example of a forced retirement.
Where does the buck stop at Empire? Who stuffed up and is anyone going to take responsibility for what happened at RGN-1 and steps down?