In Township of Upper Saucon v. Pennsylvania Labor Relations Board, 152 Pa. Commw. 530, 620 A.2d 71, 75 (Pa. Cmwlth. 1993), the township switched all its police officers from a system of rotating shift schedules to a steady shift schedule. It did so unilaterally without negotiating with the police officers' bargaining unit. The Court affirmed the holding of the Pennsylvania Labor Relations Board that a unilateral change in a unit-wide scheduling system constituted an unfair labor practice. Stated otherwise, the issue of scheduling for the entire bargaining unit is subject to mandatory bargaining under Section 1 of Act 111.