For years, business leaders from Jamie Dimon to Elon Musk have predicted that AI could usher in shorter workweeks—or even a future where people don’t need to work at all. But one prominent tech entrepreneur believes the opposite is true for teams that want to win. As AI allows startups to accomplish more with fewer people, Jason Lemkin, founder of the SaaS community SaaStr, said the companies that come out on top won’t be collaborating on Zoom—t…