The primary thing when you take a sword in your hands is your intention to cut the enemy, whatever the means. Whenever you parry, hit, spring, strike or touch the enemy’s cutting sword, you must cut the enemy in the same movement. It is essential to attain this. If you think only of hitting, springing, striking or touching the enemy, you will not be able actually to cut him.
The McNamara fallacy, named for Robert McNamara, the US Secretary of Defense from 1961 to 1968, involves making a decision based solely on quantitative observations (or metrics) and ignoring all others. The reason given is often that these other observations cannot be proven.
The fallacy refers to McNamara's belief as to what led the United States to defeat in the Vietnam War—specifically, his quantification of success in the war (e.g., in terms of enemy body count), ignoring other variables.
We realized a few years ago that the value of switching to Slack was so obvious and the advantages so overwhelming that every business would be using Slack, or “something just like it,” within the decade. It’s validating to see you’ve come around to the same way of thinking. And even though — being honest here — it’s a little scary, we know it will bring a better future forward faster.
However, all this is harder than it looks. So, as you set out to build “something just like it,” we want to give you some friendly advice.
First, and most importantly, it’s not the features that matter. You’re not going to create something people really love by making a big list of Slack’s features and simply checking those boxes. The revolution that has led to millions of people flocking to Slack has been, and continues to be, driven by something much deeper.
Building a product that allows for significant improvements in how people communicate requires a degree of thoughtfulness and craftsmanship that is not common in the development of enterprise software. How far you go in helping companies truly transform to take advantage of this shift in working is even more important than the individual software features you are duplicating.
Second, an open platform is essential. Communication is just one part of what humans do on the job. The modern knowledge worker relies on dozens of different products for their daily work, and that number is constantly expanding. These critical business processes and workflows demand the best tools, regardless of vendor.
Third, you’ve got to do this with love. You’ll need to take a radically different approach to supporting and partnering with customers to help them adjust to new and better ways of working.