Good background article on the Chicago School.
Most of them seem more interested in fiction than poetry, but not all (I want to look for the study by one of the "3rd generation" Chicagoans, Adena Rosmarin (Power of Genre, on 19th-20th cent. poetry). Implications of their general approach might be worth exploring. RS Crane in the book I'm reading (Languages of Crit. & Structure of Poetry) writes about how Aristotle's Poetics is not about the social or political aspects of the subject, but is an investigation of how "good poems" (in the mimetic mode - tragedy, epic) get written.
On a side note, I've mentioned here before how the opening of Stubborn Grew - which, by the way, appears to be out-of-print now at Spuyten Duyvil - was generated in part by the Poetics. I was reading a study on it, which argued that the Poetics "does what it says" in a sort of para-poetic way. This gave me the idea that a long poem could open with sketches exploring the concept of writing a long poem, of telling stories. Gives it sort of an echo effect, a reflexivity.