"Our Security Department plays a leading part of the bank's management system," the bank manager said.

Does my sentence sound right to you?
I mean, can the bank manager use the words "the bank's management system" for his/her bank?
'A leading part in...'

A bank manager could say that, but I don't know if she would. If I were a bank manager, I would just say 'in our bank'.
Understand! Thanks, Mr M.