Lean thinking, which underpins SAFe, emphasizes achieving fast and sustainable flow through:
Understanding the full Value Stream (A): This enables identification and removal of bottlenecks and waste.
Constant reduction of delays (B): Reducing delays improves flow and time-to-market.
Reducing batch sizes (C): Smaller batches move through the system faster, reducing cycle time and increasing feedback.
Applying "subjective governance" (D) is not a Lean principle; governance should be objective and supportive of flow.
"Lean organizations achieve fast and sustainable flow by mapping the Value Stream, reducing batch sizes, and continuously removing sources of delay." (Source: SAFe 6.0 Framework: Lean-Agile Mindset and Principles; SPC 6.0 Guide, "Thriving in the Digital Age and Business Agility")