Without SBA's prior written approval, for a period of two years after the date of your most recent issuance of Leverage (or the receipt of any SBA Assistance as defined in part 105 of this chapter), you are not permitted to employ, offer employment to, or retain for professional services, any person who:
(a) Served as an officer, attorney, agent, or employee of SBA on or within one year before such date; and
(b) As such, occupied a position or engaged in activities which, in SBA's determination, involved discretion with respect to the granting of Assistance under the Act.