What should we NOT do to a workstep that is a bottleneck:

Make sure it gets defect free units to work on

Make sure that people or other resources constituting the bottleneck operation are treated and maintained well to ensure maximum availability

Develop ways to divert lower importance$/$non$-$critical units from the bottleneck to another lower cost work resource

Increase bottleneck capacity by adding resources or finding improved work methods

Offer incentives to the bottleneck resources to continue working at full capacity indefinitely