Versus the bias of one judge colouring how law should be decided? Judges are supposed to interpret the law, not create it. A strong legislative framework and collaborative atmosphere between the legal and political communities should remove the need for something like case law.
That already exists. Higher courts decisions then become considerations on appeal. Usually the decisions aren't just biased either but based on previous congressional rules and law, but there are a lot of times where congresses rules are ambiguous or lacking and has become so ineffective that justices have no choice but to make a ruling or leave people vulnerable.
