Ill. Admin. Code tit. 80, § 250.160
b) If, because of the urgency of time during such an emergency, the immediate employment needs of the employer cannot be met by following the procedures, as established by the Rules of the Merit Board, the president, or the ranking administrative officer of the employer, is authorized to take such actions as described in paragraphs (c) and (d) below, with the stipulation that:
c) The president, or the ranking administrative officer, or an individual or individuals designated by him for this special assignment, may reassign any employee to serve within his ability and in accordance with need, or he may recruit any individual to assist as necessary, without reference to the appointment provisions of the Statute and this Part governing the System.
Suspension of Rules in an Emergent or Catastrophic Situation.