What are your conclusions based on everything you know about these players?
I am pretty sure Malloy is a poor defender because I have read nothing to the contrary. I am confident that Meadows is a good defender. I am less sure about Jung and Keith as I have seen mixed reviews, but it seems they are not going to make it based on their defensive skills. When I see mixed reviews of minor leaguers, I get concerned because succeeeding in MLB is really hard and the difference between defensive skiils of major and minor leaguers is large.