Gallo has set the bar so low that it's almost impossible for Williams to be any worse at 1B. Also, there's some potential upside with Williams, i.e. he might be an actual major league caliber player. Ditto for Stevenson and Larnach, although the clock is running out on him.
We know what Dobnak is, a AAAA, or maybe even just a AAA pitcher at this point. I don't want to see a guy like that anywhere near the starting rotation, or even the bullpen when there are younger options.