In Greenblatt's Learning to Curse, he responds rather extensively to two critics' complaints about new historicism. He uses Walter Cohen's remarks as an example of a Marxist critique and Jean Howards as a... jean-howardist critique.
Now I'm too lazy to go check this, but I'm fairly sure those two are two of his three co-editors of the Norton Shakespeare.
This is a small world I'm getting myself into.
Also, in the copy of Shapiro's Rival Poets that I got from the Columbia Library, a third of the names in the introduction are underlined. Why? Is someone writing a paper on Shapiro's literary influences? On literary critics who look like Shapiro?