> let's say I want to hire my first salesperson If you don’t know the criteria for a good salesperson for your product you don’t know enough about the problem

> let's say I want to hire my first salesperson If you don’t know the criteria for a good salesperson for your product you don’t know enough about the problem you’re solving and shouldn’t hire anyone, yet. Similarly, if you don’t know exactly what to build to solve a problem (= you haven’t already validated it with low tech tools) you shouldn’t hire an engineer to build anything.