Nike's going back to the past to ensure its future.It's been a tough stretch for sporting apparel and shoe giant Nike (NKE -0.23%). The company, famous for its Swoosh logo, has lost its growth momentum after an excellent couple of years following the onset of the pandemic. Today, investors question the company's competitive moat as emerging competitors like Deckers Brands, which sells Hoka sneakers, have enjoyed solid success.Nike has grown concerned enough that it ousted CEO John Donahoe to bring back form ...