John Marshall Harlan II,
Republic Steel Corporation v. Maddox…
“ A contrary rule which would permit an individual employee to completely sidestep available grievance procedures in favor of a lawsuit has little to commend it. In addition to cutting across the interests already mentioned, it would deprive employer and union of the ability to establish a uniform and exclusive method for orderly settlement of employee grievances. If a grievance procedure cannot be made exclusive, it loses much of its desirability as a method of settlement. ”
