Ask HN: How do you hire people who get equity

I seem to have horrible judgment in partners. I've now had 2 partners that I brought in and gave equity to. I thought they hung the moon and then stuff went south. One thankfully quit in a blaze of glory and forfeited any equity. The other one was like a freight train until the vesting cliff kicked in and then he started asking for cash out of the business and stopped calling on customers (he was BD).

So HN how do you do this better than me?