Implementing a lean system:

a$.$ has the advantage that workers have less stress because of the routine, repetitive work they perform.

b$.$ typically relieves the workers and first$-$line supervisors from activities such as scheduling, expediting, and productivity improvements.

c$.$ requires an examination of the reward system to make sure it is consistent with the JIT philosophy.

d$.$ involves the reorganization of material flows to that of a flexible flow.