Who would you move up? He doesn't have much to show for it yet, but he's been grinding pretty good so far in the games I've seen him play. I think too much unnecessary tinkering usually has adverse affects, especially when you don't really have an obviously better choice to slide in there unless you're going to just give Lombo the job, which I don't think anyone will be suggesting any time soon.
Ankiel. At least against righties.