Lean, Lean thinking, Lean Enterprise and Lean Manufacturing are all terms that have come to represent a method for improvement created by Toyota over 50 years ago. James Womack coined the term Lean when he tried to name the principles and approach he observed in that company. He saw that Lean training leads to continuous, customer-focused improvement.
Lean is about creating a culture where every person is thinking about the customer. Lean is focusing on improvement for the customer, to improve internal processes and reduce waste.
To achieve this takes time and effort, starting with effective Lean training. It is only by understanding the principles that people can put them into action. Every member of staff must be encouraged to identify and remove waste, without fear of blame. Failing to provide staff with at least some level of Lean training can hold back the cultural change you need for success.