"[According to the Court, in] Yard-Man, the 6th Circuit was imposing its own suppositions about the parties' intentions, when the evidence at hand was not sufficient to support those conclusions ... For example, the circuit inferred that the parties would not leave so important a matter as retiree benefits to future negotiations. That was an unacceptable assumption to make, because it was not backed by any showing that this was a common belief or practice in the industry. It was also a mistake because the circuit was allowing that assumption to outweigh contrary implications from the CBA's duration clause terminating the agreement generally." [M&G Polymers v. Tackett, No. 13-1010 (U.S. Jan. 26, 2015)]