The Scrum Guide added commitments: Product Backlog - Product Goal Sprint Backlog - Sprint Goal, and  Increment - Definition of Done.  

Bottom line for that client Like anything, a little knowledge can be dangerous. Here is a report from one individual at that client...

a case study on evidence based management for agility for freeing up capacity

For those who use Scrum, I hope you find this two-pager of hints and links useful....let me know if you have even better ones, thank you.

Kanplexity is itself an empirical Direction of Travel.

1000s of people, with a huge appetite for varying levels of agility, & low appetite for risk, with so much enthusiasm - is called a Scrum

How similar are Nexus and LeSS really?

opinion piece by John Coleman on the use of scaling patterns or none - views are his own

John Coleman with support from Nader Talai uses Toyota Kata to amplify flow based retrospectives / service delivery reviews.

John Coleman tells us the results of his worldwide experiments with an advanced version of Featureban. Supported by Andy Carmichael and Nader Talai.

Agile agility Scrum Kanban rescue