In Greene County v. District 2, United Mine Workers of America, 578 Pa. 347, 852 A.2d 299 (2004), an employee of the County's Children and Youth Services (CYS) was terminated for poor record keeping and case mismanagement. The arbitrator determined that there was no doubt that the employee engaged in the misconduct for which he was terminated and acknowledged that the employee's actions placed the safety of the children involved at serious risk; nevertheless, the arbitrator reinstated the employee based on mitigating circumstances. Our supreme court held that because the employee's chronic and serious misconduct went to the core function of CYS as a public agency, the arbitrator's award was not rationally derived from the parties' collective bargaining agreement.