"The first issue arises if a company's recovery policy were to provide for clawback from nonqualified deferred compensation before it becomes payable, which could result in a significant tax penalty on an affected executive under Section 409A of the Internal Revenue Code. The second issue arises when an executive has already paid taxes on the IBC, as the rule requires the clawback be equal to the bonus amount pre-tax, not the amount that the executive netted from the bonus."