In many companies 85% of the workforce reports directly to frontline leaders. This makes developing frontline leaders to drive the Continuous Improvement strategy imperative for success in a Lean transformation.

Check out this article for more details:

https://www.industryweek.com/operations/continuous-improvement/article/21280618/front-line-leaders-the-most-overlooked-role-in-lean-transformation

industryweek.com

Front-Line Leaders: The Most Overlooked Role in Lean Transformation

It's critical to train and engage the people who most workers report to and communicate with.