Career potential for MSF

Hi, I am an outsider of the business world and a I am worried about my younger brother career future. He has chosen recently to commit to gettinf anf MSF. He has been unable to find a job for more than a year now, before that, He has worked birefly as a stock analyst for a company outside the US. He ultimately want a career in the investment field. Having known people who obtained MBAs without a clear career path, and ended up regretting their decision to get a degree that didn't help them find jobs, I am abit worried about him. For most schools you kinda know what you will do after you graduate. If you go to nursing school you become a nurse, if you go to engineering school you become an engineer, etc, but in the business world things seems to be very muddy. atleast to an outsider like me. SO would his chances of finding a job after completing an MSF be good, even if he had little to no work experience.