Cheng Xin/Getty Images Nike says its business is midway through a turnaround. Key Takeaways Nike shares, which are down 10% today, are stuck below the prices that predated Elliott Hill's days as CEO. Investors initially welcomed the news that Hill would return to Nike. Today's drop indicates that they're looking for more before declaring the turnaround a success. Nike hoped a new CEO could get its stock rising again. So far, the change just hasn't done it. Shares of Nike (NKE) have fallen some 20% ...