This could be considered either a bug, or a feature request. To me, in this case the lack of this feature is a bug, I´d say:
The admin, by editing a users profile, does not have the option to edit the user picture. If the picture is inappropiate (say sexual, for example) or something like that... the only way to remove it is by becoming that user.
Another one I think would be good, is the language setting. But the biggy is the user pic.