I'm happy that they picked up this post because most business problems concern reverse causation. A small subset of problems can be solved using A/B testing, but only those in which causes are known in advance and subject to manipulation. Even then, Facebook got into trouble for running such an experiment (not in my eyes though).
Thanks to the editing team at HBR. I like the new version a lot.
Neil Paine at Fivethirtyeight did a round-up of the key articles that attempt to use data to make arguments about Deflategate.
PS. It is a little hard to find the HBR article right now. Seems like it takes time for their website to update the search engine and navigational tools.
PPS. For those in California, come meet me next week. Here are the details (look also on the right sidebar). The talk is about visualizing data.