People who have been on the other side of the hiring decision don't think this way ...
It is easy to lie on a resume, you can fake external references, and it is often difficult to get a meaningful impression of someone from a job interview. When someone you trust vouching for a family member/friend/co-worker goes a long way towards proving that you can trust them too.
Beyond that, a lot of jobs are created for people because people know they can solve a particular problem. You may work at a company and notice they need some sort of Business Analyst but it is nearly impossible to convince anyone to hire a BA; but if you present it as "I used to work with a great BA and they were able to solve the exact same problem we're having in my previous company" it is pretty easy to get the job created.







