This pretty much sums up Ravitch – she can't acknowledge that there might be even ONE crappy teacher in America who should be fired. If she weren't so influential, her views would be hilarious!
My favorite line from that day occurred when Jackson said he had recently visited some very high-performing nations. At each stop, he asked authorities: "What do you do about bad teachers?" They consistently replied: "We help them." He then asked: "What do you do when they don't improve?" They answered unhesitatingly: "We help them more." (http://blogs.edweek.org/edweek/Bridging-Differences/2010/11/what_i_learned_in_new_orleans.html)
My friend's comment on this is exactly right: "I would be interested to know if Diane would feel the same way if the word surgeon were substituted for teacher – especially if the surgeon was about to operate on her."