Ask HN: How to work with people who's just waiting for an exit. #startup

In this startup, this employee has been around for a while, almost at beginning of company. I'm not sure what's his contributions to the company are but he doesn't seem to do anything on a daily basis, at least nothing that translates to increasing company revenue. He's always working on his "side projects" that has nothing to do with company products. I got a feeling that he's just sitting around, getting by, waiting for an exit to happen.

Is this a prevalent thing in startups these days?