If the arbitration agreement provides a method of appointment of arbitrators, this method shall be followed. In the absence of a provision in the agreement, a party may file a petition with a court to appoint one or more arbitrators. A court shall appoint one or more arbitrators if: The arbitration agreement does not provide a method of appointment; The agreed method fails or for any reason cannot be followed; or An appointed arbitrator fails or is unable to act and his successor has not been appointed. A court appointed arbitrator has all the powers of an arbitrator specifically named in the agreement.