Target CEO Michael Fiddelke is reshuffling his leadership team and making other changes shortly after stepping into the top job at the retailer that has struggled operationally. Rick Gomez, the 13-year Target veteran who oversees the chain’s vast inventory of merchandise, will leave the company. And Jill Sando, the chief merchandising officer overseeing a handful of categories like apparel and home and who has been with the company since 1997, will retire. Lisa Roath, who oversaw food, essentials and cosmetics, will take Fiddelke’s previous job as chief operating officer, the company said Tuesday. The changes will allow Target to move with greater speed, Fiddelke said.