The goal of Lean is to have a system that is optimal to deliver valuable results given the organization's particular resources, needs, and options. Since these factors are always changing, a lean enterprise is always fine-tuning to continually improve. Lean systems look at the way work flows through the entire system rather than looking for fixes that only address component parts of the system.
The Easy Road to FLOW Goes through a Town named LEAN
Applying Lean Software Development Principles Throughout the Organization
Intro to Lean Product Development FlowSession 4 of the Lean SSC 2011 Webinar Series
An introduction to a key methodology which allows Lean to connect Agile practices with delivery of business value to achieve end-to-end agility throughout the business. This is essential with scaling of teams and enabling an Enterprise wide transition to Agile that can overcome many of the problems faced by teams attempting a bottom up approach.