I would say Hardy is a slightly above average SS. I would say you are selling JJ a little short by calling him slightly above average. He does well in any metric you look at. Not elite, which I think Escobar has the tools to become, but still well above average. I don't think Escobar will be better than JJ by the end of this season. I don't believe that there is much of a learning curve playing defense in the minors compared to the majors. Somewhat of a tangent question, but if JJ was playing back to gain more range, why wouldn't Escobar play back as well? He gets the same range by playing up but I think he would get to more balls playing back leting the 3B play on the line a little more and getting to more balls up the middle.