The general management of an Italian bank will consist of a general manager and a number of vice of deputy general managers. To call it a "struttura" is really just a manner of speaking, because each deputy will be in charge of different departments and functions in the bank. While they will co-ordinate closely, they are a group of team leaders, rather than a team which forms an operational unit.
Together they constitute the senior management of the bank for everyday operations, while the "amministratore delegato" or CEO is normally responsible for strategic decision-making and long-term policies.