Passed on a lead and they got the job - what worked for you?

I referred a former colleague for a role at my new company. There are 16 people counting on me, so I am trying to be careful. He started on Monday. Thank you for the advice that got me here.

Thanks for writing this out. I went through something close to it 5 months ago, and it settled down once I kept a simple log of every call and form.