I haven't gotten to read what everyone has said, but as much as this is Jimmy's case, it's more Chuck's. Chuck did all the work. Chuck knew all of the angles. Chuck turned it into a RICO case. There were telling moments leading up to Chuck's "betrayal" that back his claims that Jimmy is always looking for a shortcut. The will work that he "stored" at Chuck's, knowing he would do it for him. Chuck put all of the shreddings together while Jimmy slept. The time Chuck ran out to the car for the papers was due to something he asked Jimmy to bring and Jimmy straight laid down and was like, "Yeah, I'll get em later."

Jimmy found the case, sure. And he did some footwork. But make no mistake, the case exists because Chuck made it exist.