The Atlassian Team Playbook

This toolbox contains 41 tools divided into 3 sections: Health Monitors (to assess the current state of a team), Plays (new methods of working), and Game Plans (sets of tools for specific purposes).

The content draws from design thinking, agile methods, service design, and software engineering. It's aimed at people and teams who want to "unleash their potential" with a set of methods that are "tactical, battle-tested, and bullshit-free".

It is used internally by Atlassian teams and has now been open-sourced with a Creative Commons licence.