It depends, but 8 years is a very long time. The founders were present for about 1/3rd of the company's existence, according to the article. I was going off th

It depends, but 8 years is a very long time. The founders were present for about 1/3rd of the company's existence, according to the article. I was going off the fact that the company raised VC money 7 times after the founders were gone (following 2 raises with the founders present). Anyway, I agree there's not enough information. As the article references Facebook quite a bit, it's ironic that in that case 2/4 co-founders got a lot more than they deserved .. they didn't even leave Harvard, but they reaped billions for a few months of part-time work.