I&#x27;m one of the contributors to this article. I actually wrote a blog post about the cost&#x2F;efficiency topic since it comes up so often:<p><a href="http:&#x2F;&#x2F;benjiweber.co.uk&#x2F;blog&#x2F;2015&#x2F;09&#x2F;02&#x2F;team-efficiency-is-irrelevant&#x2F;" rel="nofollow">http:&#x2F;&#x2F;benjiweber.co.uk&#x2F;blog&#x2F;2015&#x2F;09&#x2F;02&#x2F;team-efficiency-is-i...</a>