1595 Siwek v. UAW GM Dept.

Bargaining unit employees had been performing a number of functions to ensure the quality of products received by GM from outside vendors. The Company eventually addressed quality control problems by dealing directly with the vendors. As a result, much of the work that had been done by appellant’s classification was eliminated. The Union could not insist that the Company is precluded from demanding quality parts from suppliers based on a claim that the work of correcting inadequate parts belonged to bargaining unit employees.