Does the retrenching at Reebok (OTCQX:ADDYY) set up Nike (NYSE:NKE) to gain market share? The momentum could be going its way after it replaced Reebok as the official supplier of apparel for the NFL and the latest round of comments from Adidas execs point to a focus on margins over aggressive sales growth. Also below the radar: Nike has an association with Apple through its Nike Fuel Band that could get a shot in the arm with global iPhone 5 sales skyrocketing.