Were you in the courtroom to actually hear the testimony?  Did you have a chance to witness the attorney's at work first hand?  Did you view the evidence, the body language of the witnesses?  Is your opinion based only on a news article?  The only people qualified to render an opinion on this case and the conduct of the attorneys are people who were there for the entire trial, than means the jury, the judges, and the family members who sat through the trial and none of them are saying the attorneys blew it.  Prosecutors will say the evidence is what the evidence is.  You go to trial with what you have and sometimes it doesn't go your way.