Does a professional representing a trustee or debtors-in-possession have to be a disinterested or disinterested person?

The dual requirement that professionals representing trustees and debtors-in-possession may not hold or represent an interest adverse to the estate and must be disinterested persons does not evaporate once the attorney's employment is approved.³² In fact, the court may deny allowance of compensation for services and reimbursement of expenses of a professional person employed under section 327 ... if, at any time during such professional person's employment ..., such professional person is not a disinterested person, or represents or holds an interest adverse to the interest of the estate.... 328(c) (emphasis added). Essentially, 328(c) operates as a penalty for a professional's failure to avoid a disqualifying conflict of interest. See Rome v. Braunstein, 19 F.3d 54, 58 (1st Cir.1994).