The suits are returning to the office. In chinos. And sneakers. And ballet flats.As Wall Street workers trickle back into their Manhattan offices this summer, they are noticeable for their casual attire. Men are reporting for duty in polo shirts. Women have stepped down from the high heels once considered de rigueur. Ties are nowhere to be found. Even the Lululemon logo has been spotted.The changes are superficial, but they hint at a bigger cultural shift in an industry where well-cut suits and wingtips once symbolized swagger, memorialized in popular culture by Gordon Gekko in the movie “Wall …
