Are these stocks great buys, or are they simply due for some downgrades?Wall Street analysts set price targets for where they think a stock can go in the next year or so. A high price target can be a good indicator of a growth stock with a lot of potential. But investors should be careful not to assume a stock is a sure thing just because it has a lot of projected upside. In some cases, a stock may only appear to have significant upside because it has fallen sharply of late.Three stocks that have bullish co ...