He can field, but the guy was hitting below .200 in AA, looked absolutely lost at the plate all season and playoffs. He shouldn't even begin to think about the majors until he can hit, because from what I saw he's not even ready for AA baseball. The gap between high-A and AA is the hardest to overcome, Mason Williams just fell flat on his face.
Anybody would notice a difference if you replaced Gardner with Williams. Gardner hit 270 in the MLB, Williams couldn't even get over the 200 mark in AA, hovered around 100 in AA...that won't cut it in the majors. A very long way to go.
You couldn't touch JBJ with Mason Williams right now, in fact you can pretty much take anybody you want in the Red Sox organization right now, and match them up with the yanks organization and easily take the sox's system. They have like 5 guys that would rank number 1.
Tyler Austin, and hell depending on Heathcott's rehab are better than Williams right now. Tyler Austin is way better than Williams right now, it's not even really close.