I think most of the problem with the trousers is that they are not sitting right. They are letting him wear them lower than intended - some should be as high his belly button. That would clean up that messy crotch and the weird proportions. They would also then be full where intended as opposed to just sloppy as hell. I know that when I am dressing my manni, if I don't get those trousers up where they are intended, they look terrible. Once you get them to their intended higher waist, the shape and fit falls into place.