What Scrum 20 would look like if Scrum really put Lean in

 

SG20 says: Scrum is founded on empiricism and lean thinking. Lean thinking reduces waste and focuses on the essentials

While I have long considered Scrum to be a partial implementation of Lean, I don't see any more Lean in Scrum 20 when I first said this 13 yrs ago

Here are a few principles that'd be helpful:
1) delays in workflow and feedback cause waste
2) releasing something before it's ready causes waste
3) small batches are good
4) have explicit workflow to improve collaboration
5) manage queues to avoid delays

These principles help inform practices that would be useful to teams. In particular, when multiple teams need to work together or when true cross-functional teams are difficult to form. Lean principles can provide out of the box solutions that are quite useful

The irony, of course, is you may come up with better practices than the ones you must follow to be doing Scrum.