In honour of the 20 year anniversary of the Agile Manifesto, each monthly blog this year will focus on one of the twelve principles.
"Simplicity--the art of maximizing the amount of work not done--is essential."
This principle is really focused on just doing what is necessary in the moment.
Unfortunately, it seems we haven't learned a whole lot in 20 years. Many organizations insist on taking the project (versus product) approach. As a result, projects try to accomplish as much scope as possible because they feel they'll get one chance at getting what they want.
While the product approach is making some traction, it may take another 20 years to really see it evolve.