Many of us have heard about suggestion made on recent American Medical Assosiation. It was proposed not to provide medical help to lawyers who specializes on medical malpractice cases. I guess kind of similar thing would work for USCIS. They need to fire all officers and hire new ones from the applicants with latest RD. Make them to consider cases only in chronological order and these new officers will work days and nights until they approve their own cases. Then fire them and hire new ones again, etc.