(1) If the parties to an agreement to arbitrate agree on a method for appointing an arbitrator, the method shall be followed unless the method fails. If the parties have not agreed on a method, or the agreed method fails, or an appointed arbitrator fails to act or is unable to act and a successor has not been appointed, the court, on the motion of a party to the arbitration proceeding, shall appoint the arbitrator. An arbitrator appointed pursuant to this subsection (1) shall have all the powers of an arbitrator designated in an agreement to arbitrate or appointed pursuant to an agreed method.
(2) An individual who has a known, direct, and material interest in the outcome of the arbitration proceeding or a known, existing, and substantial relationship with a party may not serve as an arbitrator if the agreement requires the arbitrator to be neutral.