Not him personally.
The people who work for him.
His job is to be responsible for his part of the job. Response is the Federal government's job, and he is the head of the Federal government.
Preparedness is for the locals. They didn't do such a hot job either, from what I read and hear. But response belongs to the Feds. The guy who likes to say he's in charge is going to have to take responsibility. The longer he tap dances around this, the worse he's going to look.
From the personal stories I've been reading and listening to, do you know who got water to people who were trapped? Looters. So there you go: our response team.