The correct answer to this open question is the following.
The views between the two lawyers on the case: Clarence Darrow and William Jennings Bryan were completely opposed. Darrow was a famous lawyer with neutral thoughts about religion that had commonsense regarding the natural evolution of men. He was the lawyer that accepted to defend school teacher and football coach John T. Scopes, in a high school in Dayton, Tennesse. On the other hand, the prosecutor, William Jennings Bryan, a conservative Christian American, who had been Secretary of State and candidate to the presidency of the United States.
I feel that Jennings Bryant was so biased by his religious teachings and conservative approaches. Darrow had a stronger more valid case.