((a)) Subject to any limitations on a trustee serving in a case under this chapter, and to such limitations or conditions as the court prescribes, a debtor in possession shall have all the rights, other than the right to compensation under , and powers, and shall perform all the functions and duties, except the duties specified in sections 1106(a)(2), (3), and (4) of this title, of a trustee serving in a case under this chapter.

((b)) Notwithstanding , a person is not disqualified for employment under by a debtor in possession solely because of such person’s employment by or representation of the debtor before the commencement of the case.