Agile Lean Leadership (ALL) is a framework and set of patterns for building organizations that are built on Agile and Lean principles and exhibit the same benefits that Scrum does at the Team level. So it can be said that: Agile Lean Leadership is a way of scaling Agile, Lean and Scrum out in the whole organization.
In simple words, Lean and Agile are a set of principles and values. Scrum is a framework (not a methodology). Many people consider Agile as a methodology or Framework, but Agile Manifesto does not talk about this. What is the Difference Between Framework and Methodology? Framework in about guidelines.
Lean-Agile Mindset. It’s the personal, intellectual, and leadership foundation for adopting and applying SAFe principles and practices. SAFe is based on three bodies of knowledge: Agile development, systems thinking, and Lean product development [1].