United Parcel Service is deeply out of favor, but it provides a vital service and is preparing for a brighter future.United Parcel Service (UPS 1.38%), which usually just goes by UPS, has a huge dividend yield of 7.9%. Many investors are likely attracted to it as a dividend stock, but that's a risky call. It is more appropriate to see this package delivery giant as a turnaround stock. And if that's how you view it, now could be the time to hit the buy button.What UPS does is hard to doWithout getting into t ...