The parties have a right to expect an arbitrator to answer the question presented, and to resolve that question with a final award when the hearing has concluded. Interim awards, retention of jurisdiction, remanding matters back to the parties, and expansive commentary generally do not serve the purpose for which the parties retained the arbitrator. An arbitrator’s authority to fashion remedies must be exercised within the confines of the agreement and the dispute presented; remedies should not be merely precatory, overly innovative, or excessive.