The document discusses deploying big changes in research and development by making the process iterative with multiple phases. It recommends taking time to market each phase of the change to various stakeholders, actively gathering feedback, and keeping a roll-back plan ready. The pattern of iterative deployment of change can be reused when transitioning between tools in the Atlassian stack like Jira, Stash, Crucible, Bamboo, and HipChat. The most important result is maintaining an open mindset throughout the process.