I&#x27;d be willing to bet that Sakaguchi has read &quot;The 5 dysfunctions of a team&quot; [1]. One of my favorite books about how people jell together in groups.<p>Like him I was also in a military setting before I became a programmer. I haven&#x27;t yet experienced the same level of engagement and team cohesion outside of the military but I believe that the answers are to be found in the kinds of insights that studies like this uncover.<p>[1] <a href="http:&#x2F;&#x2F;www.tablegroup.com&#x2F;books&#x2F;dysfunctions" rel="nofollow">http:&#x2F;&#x2F;www.tablegroup.com&#x2F;books&#x2F;dysfunctions</a>