A late change in requirements is a competitive advantage A Quote by Mary Poppendieck The State of Agile Software in 2018YagniComplete and consistent requirementsWelcome changing requirements agilesoftwaredesign
The right overlap Overlap alone does not give structure. It can also give chaos. A garbage can is full of overlap. To have structure, you must have the right overlap. Christopher Alexander, A City Is Not a Tree The city's most vital organsThe multiplicity of living patterns structure