A plaintiff launches a lawsuit with a very complicated set of facts and law. The client says, "I want you to focus on issues X, Y, and Z, because those are the ones that I am most comfortable and familiar with, and forget about, or at least downplay other issues. The law firm replies, "there are plenty of other issues here that could generate a higher award if we delve into them. The law firm then proceeds to do so, at the neglect of the client's three main concerns.
Does the lawyer have the right to do this? How closely must the law firm focus on issues X, Y, and Z if the fee arrangement is 1) "straight fee," versus 2) "mostly contingency"?
(I would guess that the lawyer would have a greater right to underweight the client's preference if the client provided mainly the "opportunity" and counsel is taking most of the financial risk via contingency. Whereas, if it were "straight fee," then the client would be paying the lawyer to "ventilate" issues X, Y, and Z in court.)