What I don't get is if they need 80 man hours of work per worker unit at current staffing levels why don't they just employ more workers? Seems more like cultur

What I don't get is if they need 80 man hours of work per worker unit at current staffing levels why don't they just employ more workers? Seems more like culture and hazing than actual productivity. And no, I don't believe that banking is so complicated that supply of qualified labour is the limiting factor. That said what is it that these entry level bankers actually do for 100 hours a week?