What is a principle of the Lean software development model?

What is a principle of the Lean software development model?

• adding additional product features that the customer did not ask for so that the customer is getting more than expected
• assigning resources to multiple projects so that effort can be divided on more than one task at a time
• making decisions as late as possible in the process so that more facts and details are available
• ordering workers to do tasks they may not want to do to ensure they get done