IMHO the Council is inept and/or crooked from top to bottom.
The causes of this disaster will be found out by the Enquiry and the criminal investigation that is on-going.
But it was obvious in the first few days, that this Council was completely unable to act decisively and quickly. If it hadn't of been for the prompt actions of the local residents, and aid organisations like the Red Cross, even more degradation would have resulted.
The previous Leader and others hung on for 2 weeks until at last resigning. Mrs May has had to appoint a SWAT Team to take over some of the vital duties of the Council.
So, as others have pointed out, the residents are quite rightly angry and distrustful of the Council as it stands today.
IMHO Mrs May should now appoint a Whitehall Team to take over every aspect of the Councils duties, and every Council Member should resign with immediate effect.