The author makes a good point that what some people chose to view as a disadvantage of open source based systems – that you can choose many different components for an open source system and that you can configure them in a myriad of ways – is, for at least some environments, very much an advantage. I tend to agree. While I like to create homogenous, documented environments for my customers – I do tailor each of those environments to my customers’ requirements – rather than trying to change their processes and workflows to suit the software (an all too common problem which occurs when deploying entirely proprietary systems).