What is the judicial role? Are judges mere umpires who call balls and strikes based solely on rules made by others? Or are judges lawmakers in their own right, creating laws and making public policy? The U.S. Supreme Court has just agreed to hear a case in which those questions could play a determinative role. In addition to being of great jurisprudential interest, however, the case will attract great attention from corporate lawyers, because it may call into question the validity of the judiciary of the state that dominates corporate law.