Taking a buy-and-hold approach with these beaten-down stocks could reward investors with market-crushing returns. In the stock market, it's often true that winners tend to keep winning. Powerful sales and earnings momentum typically translates into strong returns for shareholders. On the other hand, it's also possible to score big wins by backing high-quality businesses that are being underestimated due to near-term headwinds that can be overcome with time. With that in mind, read on to see why two Motley F ...