pure speculation on this, but AOC was the same size as Nelson at the time and they might not have seen a spot for him. Frustrating, if true. AOC was apparently very interested in the hawks.O'Connor was a top 10-ish recruit in the same year as Spencer, Yianni, Arujau, Fix, Nick Lee, Warner, Berge, Romero, Gomez, and Labriola.
Iowa also never called Aaron Brooks, so not sure that reflects on O'Connor. (They actively tried to poach him from UNC, go figure.)
This doesn't diminish the job Scott did with him. O'Connor still won 2 titles, and might have won 3 if healthy.