May 14 (Reuters) - Citigroup's ( C/PN ) Titi Cole, a top

executive in charge of implementing its sweeping restructuring

plan, is leaving the bank, an internal memo seen by Reuters

showed on Tuesday.

Cole, as the head of legacy franchises, executed the third

largest U.S. lender's plan to simplify the firm by completing

the sales of consumer banking businesses in nine non-core

markets.