I have an extensive sales background and also an entry level software developer that worked for years at a coworking office while getting my solo miniSaas off the ground.

I tried over and over to explain to other founders that they REALLY should think about sales early. I'd try to say "Ok imagine your product is done magically. It works great. Now what?"

And it was interesting to see them struggle to think of what they would actually do if it was done.