The deadline is approaching and management is feverishly meeting with the remaining project team to see what can be done by the deadline date.
As long as management continues to take action regarding any issues that impede the project deadline, the better it is for management. No one can mention the mistake that lead to this demise out of fear of being identified as one of the guilty.
In addition, management begins to solicit advice and information from people outside of the project team. The objective is to tap every resource available as the deadline approaches. The project is far from perfect but something is always better than nothing.