((a)) If a trustee dies or resigns during a case, fails to qualify under , or is removed under , creditors may elect, in the manner specified in , a person to fill the vacancy in the office of trustee.
((b)) Pending election of a trustee under subsection (a) of this section, if necessary to preserve or prevent loss to the estate, the United States trustee may appoint an interim trustee in the manner specified in section 701(a).
((c)) If creditors do not elect a successor trustee under subsection (a) of this section or if a trustee is needed in a case reopened under , then the United States trustee—
((1)) shall appoint one disinterested person that is a member of the panel of private trustees established under to serve as trustee in the case; or
((2)) may, if none of the disinterested members of such panel is willing to serve as trustee, serve as trustee in the case.