What else does the SAFe principle, unlock the intrinsic motivation of knowledge workers, require besides purpose and minimum possible constraints?

SAFe Principle #8, "Unlock the intrinsic motivation of knowledge workers," is directly influenced by Daniel Pink's work on motivation. This principle states that true, long-term motivation for knowledge workers comes from three elements: Autonomy, Mastery, and Purpose. The question provides "purpose" and "minimum possible constraints" (which is a method of providing autonomy). Therefore, Autonomy is the direct answer required to complete the triad of motivators described in the principle.

B. Transparency: Transparency is one of the four SAFe Core Values and is essential, but it is not one of the three specific elements of intrinsic motivation in Principle #8.
C. Incentive-based compensation: Principle #8 explicitly warns against individual financial incentives, as they can undermine the intrinsic motivation the principle seeks to foster.
D. Innovation: Innovation is a positive outcome that results from having intrinsically motivated knowledge workers, not a direct input to create that motivation.

- Scaled Agile, Inc. (2023). SAFe Principles. Scaled Agile Framework. Retrieved from https://www.scaledagileframework.com/safe-principles/. See the detailed description under Principle #8, "Unlock the intrinsic motivation of knowledge workers," which explicitly discusses "Leveraging the power of autonomy and purpose."

- Pink, D. H. (2009). Drive: The Surprising Truth About What Motivates Us. Riverhead Books. This book is the foundational source for SAFe Principle #8, outlining Autonomy, Mastery, and Purpose as key drivers.