I happened upon the Boston Consulting Group paper entitled Why Your Agile Coaching Isn’t Working—And How to Fix It.
Here’s a short snippet from the article that I want to use as a backdrop for several points—
The coaching playbook is especially useful when coaches run two-week “sprint” interventions with teams that need to improve a specific capability or to address performance gaps. The coach then chooses from hundreds of “battle-tested” interventions in the playbook that target that capability or performance gap, and designs a sprint plan based on it. At the end of the sprint, the coach and team evaluate the impact of the intervention. Reflecting on the effectiveness of the intervention and creating new ones also helps propagate and improve the catalog of interventions.