(May 12, 2016, 10:43 AM EDT) -- CINCINNATI — The Sixth Circuit U.S. Court of Appeals on April 21, in a case of first impression, adopted the single-employee-unit rule and held that an employer may repudiate his statutory and contractual obligations under a collective bargaining agreement (CBA) when the employer does not employ anyone within the relevant bargaining unit (Baker Concrete Construction, Inc. v. Reinforced Concrete Contractors Association, et al., No. 14-4102, 6th Cir.; 2016 U.S. App. LEXIS 7202)....