“We should note that a Lean strategy is a superior business approach: it clearly delivers dramatic advantages tracked by conventional measures such as cycle times and defect rates, use of invested capital, and enterprise value. We have found that companies that fully commit to Lean dramatically outperform their competitors over time.” 

The Lean Strategy by Michael Balle, Daniel Jones, Jacques Chaize, and Orest Fiume (McGraw Hill, 2017) p. 10.