my take on Jimmy so far:
we see a guy who's an outsider....he's not good enough for his brother's law form, not good enough for Kim, not even good enough to represent the Kettlemans until they get desperate. He's shown that he's an amzingly talented lawyer and gets stuff done,ike finding the Kettlemans, getting the money back, doing the work on the class action....better than probably most of the HHM guys....after a period of time of out-producing the insde guys and failing to gain acceptance, he will break. I think, at some point, Kim will be the catalyst, by either rejecting hiim or backstabbing him, or maybe she has just been using him all along, recognizing his talent and keeping it to herself as a resource...her secret weapon...