The size that you can grow to while maintaining singular focus is getting bigger and bigger. Parker’s situation is probably different because he was able to raise a bunch of money early on after Zenefits bequeathed him with SV stardom. He had early signs of success because he was able to acquire customers through what seems like an incomparable feature completeness, at the cost of shit UX and buggy software (IME). For example: they literally didn’t file our tax documents despite telling us they did, resulting in thousands of dollars of fines.
I might be overly cynical based on our pretty awful experiences, but feel vindicated because we’ve moved to a smaller, leaner, more focused HR startup named Warp and haven’t had half the issues we did with Rippling.