ir.1997) (the need to disqualify counsel "frequently only becomes clear at the conclusion of the underlying litigation"); Norman Reitman Co. v. IRE—Brasil Resseguros S.A., No. 01 Civ. 0265(RCC), 2001 WL 1132015, at *4 (S.D.N.Y. Sept.25, 2001) (denying motion to disqualify where "parties have just begun discovery and t