In every judicial district, the district court judges in such judicial district shall elect a district judge as chief judge who shall have general control over the assignment of cases within the district, subject to supervision by the supreme court. The procedure for such election shall be determined by the district court judges and adopted by district court rule. Within guidelines established by statute, rule of the supreme court or the district court, the chief judge of each district court shall be responsible for and have general supervisory authority over the clerical and administrative functions of such court. The district judge designated as chief judge by the supreme court on July 1, 2014, shall be allowed to serve as chief judge through January 1, 2016.