I dont mind quest being built for specific skillsets, but this one isnt introduced as pickpocketing based quest.
It just has a single solution. When dealing with Englander directly.
You do have two or three RPS options when you reveal that to Victoria. You can talk her into giving some kind of mcguffin amulet to you which then convinces Englander you killed her and he presumably goes away. - i dint bother checking it really.
Or you can pickpocet it of her, but atleast you have some choice there.
Or you can say youll handle it some different way.
But that different way would be neat if it had some more options.