Racedo.......The key word I feel in your reply is "time"...how much time would it be fair to spend to address problems some of which in the v harsh world & in bad dreams be anticipated,but certainly game planned on a wet afternoon..
This is taught I would feel in management school as would such a thing as business damage control,however harsh the answer or outcome.
Are you seriously considering a £100mill + projected loss was only noticed this week?..