At this stage rather than apportioning blame or trying to avoid it, I would prefer to see elected reps and workers reps and those of the company and all involved working together to sort out this as best as can be achieved for the workers in thee company, those companies affected by this, and those dependent on the services provided by it.
The causes are likely to be complex and need some form of inquiry but that will be a longer term objective. Unless someone is for no form of a mixed market, then notionally we all have some responsibility for such a system, and even those who want the means if production commonly owned aren't going to achieve that in the next couple of months, while people will be worried about how they pay the mortgage.