Read more about the Objectives and Key Results leadership process, and consider how this quantifiable process could be implemented into your Agile framework.
https://dzone.com/articles/an-introduction-to-okr-objectives-and-key-results
* Harvard Business Review survey
* The 4 Disciplines of Execution.
* GQM
* *Psychological Bulletin, Vol 142(2), Feb 2016, 198-229
* An Introduction to OKR: Objectives and Key Results
* LeadingAgile