Tex. Est. Code § 1023.009

If it appears to the court that transfer of the guardianship is in the best interests of the ward, but that because of the transfer it is not in the best interests of the ward for the guardian of the estate to continue to serve in that capacity, the court may in its order of transfer revoke the letters of guardianship and appoint a new guardian, and the former guardian shall account for and deliver the estate as provided by this title in a case in which a guardian resigns.