Eric Karabell and I have a new segment we're calling SweetSpot Stock Watch, where we rationally discuss and occasionally argue about a few players. Today's edition: Red Sox prospect Will Middlebrooks, Cardinals starters Lance Lynn and Kyle Lohse, red-hot Bryan LaHair and Orioles pitcher Jake Arrieta, coming off his dominant effort against the Yankees on Thursday night. And don't forget to check out Eric's fantasy baseball blog on ESPN Insider!