Most things are not as risky as they seem.
You can't be focussed without really great communication
You'll get more support on a hard, important, project than a derivative one.
... but actually it sucks to have a lot of employees, and you should be proud of how few employees you have.
... you can think about that for everyone you hire: will I bet the future of this company on this single hire? And that's a tough bar.
The second part of how to hire: try not to.