Fidelity Investments is realigning its system for selling through  banks, brokerages, and insurance companies, in response to mergers that are   bringing those industries together.   
The new approach will give the Boston-based mutual fund company the  ability to have a single relationship with companies that have merged or   are merging across industry boundaries. Such companies include Travelers   Group and Citicorp and Fleet Financial Group and Quick & Reilly.     
  
Until now Fidelity Investments Institutional Services Co., a unit that  handles sales through financial intermediaries, has marketed the company's   products and services through individual banks, brokerages, and insurance   companies.     
"The catalyst was the rapid transformation going on in the financial  services industry," said Jeffrey Cathie, a Fidelity spokesman. "This will   better align FIIS with how its clients and potential clients are doing   business right now."     
  
Louis Harvey, president of Dalbar Inc., a Boston-based consulting  company, said if the merged institutions Fidelity is targeting keep their   different businesses highly autonomous, a centralized relationship could   backfire.     
But Mr. Cathie said FIIS' approach will be "integrated and flexible" and  structured to avoid such problems. The unit has $145 billion of assets   under management, nearly one-quarter of Fidelity's total assets.