 His solution was to balance the Tamim with the largely Azd–Rabi'a troops of al-Muhallab.The latter's appointment marked a departure from the Umayyad tradition of appointing a member of the Quraysh as governor over Khurasan.By dint of his battlefield reputation and al-Hajjaj's resolute support, al-Muhallab secured the loyalty of the Khurasani troops.