If the court issues a protective decree under paragraph (1), such court shall forthwith appoint, as trustee for the liquidation of the business of the debtor and as attorney for the trustee, such persons as SIPC, in its sole discretion, specifies. The persons appointed as trustee and as attorney for the trustee may be associated with the same firm. SIPC may, in its sole discretion, specify itself or one of its employees as trustee in any case in which SIPC has determined that the liabilities of the debtor to unsecured general creditors and to subordinated lenders appear to aggregate less than $750,000 and that there appear to be fewer than five hundred customers of such debtor. No person may be appointed to serve as trustee or attorney for the trustee if such person is not disinterested within the meaning of paragraph (6), except that for any specified purpose other than to represent a trustee in conducting a liquidation proceeding, the trustee may, with the approval of SIPC and the court, employ an attorney who is not disinterested. A trustee appointed under this paragraph shall qualify by filing a bond in the manner prescribed by section
322 of title
11, except that neither SIPC nor any employee of SIPC shall be required to file a bond when appointed as trustee.