In the past few years I've been researching who are the successful agents, tried to figure out why top agents are top agents.
Do they have a common educational background? No. Good ones have high school diplomas, masters and doctorates. No correlation.
Similar previous careers? No. One of the best agents I know used to teach baton twirling. I doubt if I could find a lot of those if I tried! I've had waiters, teachers, high powered executives and stay-at-home Moms who were all very successful.