MANY IN New Orleans were not happy with President Obama's brief visit Thursday. They wanted him to spend more time talking with them about what's been happening since hurricanes Katrina and Rita unleashed misery there four years ago. We're sympathetic to their desire for substantial presidential face time. But neither Mr. Obama nor his administration is a stranger to the devastation of the Gulf Coast or the frustrations with the pace of recovery. What's more relevant than how many times he visits is how much more needs to be done.