Citicorp announced a management reshuffling Friday that leaves William  Campbell, a former chairman of Philip Morris U.S.A., in charge of worldwide   retail banking.   
Mr. Campbell, 51, replaces Pei-yuan Chia, a vice chairman, who said he  will be retiring this year. 
  
Mr. Chia, 56, has spent 22 years at Citicorp and was long a key member  of its consumer banking team. Only last year he was promoted to head of   global consumer banking, concurrently with Robert McCormack's appointment   to head of global corporate banking and David Gibson's to head of emerging   markets operations.       
Mr. Gibson also figured in Friday's announcement. Citicorp said he will  retire in March and be replaced by Dennis Martin. Mr. Martin will run   emerging markets day-to-day and report to vice chairman Paul Collins, who   will oversee strategy.     
  
The moves are the most significant in Citicorp's top ranks since the  departure in December of Christopher Steffen, the vice chairman who   spearheaded the company's aggressive cost-cutting and reengineering   campaigns.     
Victor Menezes, who had been head of the retail unit known as  Citibanking Europe/North America, succeeded Mr. Steffen as chief financial   officer. Mr. Menezes' old post will now be filled by   Rana Talwar.     
Roberta Arena is remaining in another key retail job - head of credit  cards for Europe and North America - and will be joined by a new corporate   planning officer, Shaukat Aziz, "to further globalize the card business."   
  
Citicorp chairman John Reed, in a statement Friday, said, "These  assignments are part of our 'Business Directions' strategy and continue   providing additional experience for the next generation of Citicorp's   leadership."     
He underscored his reliance on "senior policy overview" from vice  chairmen Collins, William R. Rhodes, and H. Onno Ruding. 
With the Canadian-born Mr. Campbell, Citicorp adds more of the consumer  mass-marketing skills that have continually been its hallmark. He left   Philip Morris last June after 28 years and has been a consultant to   Citibank.