I could embed features of Sort, Rename Cols and Remove Cols into various other transforms to reduce the number of transforms required. But it does start to blur the lines between the transforms a bit and makes it a bit less clear what is going on. Especially when you start to combine row based transforms (such as Unique) with column based transforms (such as Remove Cols). On balance I prefer to keep the transforms simple and distinct, even if it means you need a few more transforms.