Not sure you saw the 2017 First Round State of Venture survey [6] results, but anxiety over hiring sales staff has become the No. 1 priority for startup founders (was tech staff). I think you're on to something... assuming you focus on startups, maybe Pre-A round?
Yeah, was definitely interesting to see that. That's exactly the intended focus. Essentially a crash course for tech founders to start selling in their early days.
[6] http://stateofstartups.firstround.com/2017/#introduction