Software development processes that do not respect human behavior within teams add accidental complexity, needless to the problem to solve. For instance, an unsuitable organizational structure and communication can easily destroy affiliation, motivation, loyalty and leadership within teams. Luckily, the book Great Boss, Dead Boss written by Ray Immelman and Maslow’s hierarchy of human needs provides food for thought to identify and classify tribal attributes of impressive teams and thus decrease needless accidental complexity. Likewise, outstanding teams attributes can easily be reinforce using agile methodology. The goal of this presentation is to explain in what outstanding teams attributes are similar to prehistoric tribes and in what agile methodology encourage these attributes to emerge.