Assume that you—as a supervisor in a manufacturing plant—have heard rumors that

Question

the union, which has been virtually inactive until now, is planning to take complaints to
upper management.

Answer 1

All right; then what? Management can tell the union to try to settle its specific disputes at the shop supervisor level.

The supervisors can also approach shop union stewards and try to settle disputes without involving upper management.

If that does not work, the union has a right to complain to upper management, the NLRB and, or course, to strike.