While there is lots of interesting discussions about Data Scientists, or lack there of. The role of Data Science in Big Data is well understood. I think the need is actually for Data Science Engineers. I had a set of pictures explaining this concept and interestingly came across a blog by HortonWorks on the topic of Data Scientists.
[Update May 19, 2013] An informative blog in the Wall Street Journal about Data Scientists by IBM’s Irving Wladawsky-Berger – Data Science is a multidisciplinary evolution from business intelligence & analytics. In addition to having a solid foundation in statistics, math, data engineering and computer science, data scientists must also have domain expertise.
What says thee ?