The big difference is the lack of accountability. AFAIK if a developer misses shipping during a sprint, they’ll just add it to the next sprint. If a salesperson does this, after 2 quarters of missing your quota, you’re fired. Doesn’t matter if you had monster quarters before that, if you’re not hitting your numbers, GTFO.
I think this is because sales have very clear metrics that everyone can agree upon: revenue, number of demos, cold outreach, etc. We’ve been tracking these types of metrics in cuneiform. Comp sci wasn’t a thing until the 1960s. It’s still too new and everyone has an opinion on what metrics to focus on without angering a developer for micromanaging them. This is where the friction lies; until that’s fixed, you will not have a cohesive team. I hope that AI takes over and we don’t need devs or salespeople anymore.
context: I’m a sales guy that sold software that tracks “engineering performance” to VPs of Eng and CTOs depending on the size of your company. It was shocking to see the level of variance in measuring performance metrics for eng teams.