  We consider a derivation of the hierarchy of correlators of ordered
exponentials directly from the Lipatov's effective action~\cite{LipatovEff}
formulated in terms of interacting ordered exponentials~\cite{OurZub}. The
derivation of the Balitsky equation~\cite{Bal} from the hierarchy is discussed
as well as the way the sub-leading eikonal corrections to the Balitsky equation
arise from the transverse field contribution and sub-leading eikonal
corrections to the quark propagator. We outline other possible applications of
the proposed calculation scheme.
