- Giles: [http://gilesbowkett.blogspot.com.au/2014/09/why-scrum-should-basically-just-die-in.html]
- Ron Jeffries: [http://ronjeffries.com/articles/2015-02-20-giles/]
- Giles: [http://gilesbowkett.blogspot.com.au/2015/03/why-ron-jeffries-should-basically-just.html] (Deleted, archive at https://web.archive.org/web/20160227145211/http://gilesbowkett.blogspot.com.au/2015/03/why-ron-jeffries-should-basically-just.html)
- PandaStrike (Giles): [https://www.pandastrike.com/posts/20150304-agile]
20 point stories: