> What if your lawyer rates a 15 (scale 0-100) and simply says that that's what I really believed, given the evidence and resources available

> Who is going to disbar /blame him when he recounts the challenges he faced?

The disciplinary commission of the State Bar, who will be reviewing the information provided, and will be composed aren't 15s.

And, quite possibly, a court hearing a malpractice claim and applying the professional standard of care.