Nike is expected to report a steep decline in quarterly profit and flat sales on Tuesday as the sneaker giant continues to work through a colossal turnaround under CEO Elliott Hill. About a year and a half into his tenure, Hill has made strides in repairing parts of the business, but has been clear that it'll take time for the entire company to improve given the retailer's scale and complexity. When reporting fiscal second-quarter results in December , Nike said sales rose 9% in North America,