Key PointsPrevious management mistakes include a lack of innovative products.New management has tried to renew the focus on sports.Nike continues to produce year-over-year sales declines...10 stocks we like better than Nike › When a stock that's done well for a long time slumps, investors sometimes get tempted to jump in. But the market has sent the price down for a reason. That's why investors should look deeper into the company. Nike (NYSE: NK…