well, i wasnt planning on changing a career. just something to boost my chances
take the royal canadian mounted police for example.
they advise you to sign up fo rthe rcmp, and since there is a long line up (as in aviation) you can go to university while your waiting and do police related courses such as criminology. and since you have background in criminology (since you did the course) you will almost automatically get into the r.c.m.p as you have higher priority over people who dont have an police study background
i plan on doing the same thing for aviation
after i complete flight school and sign up, i do engineering (which will increase my chances to be a comercial pilot) in university WHILE IM WAITING TO BE ACCEPTED TO AN AIRLINE. now if i have a course in engineering done, i will get into aviation faster.
its not a matter of changing my career path, but more like enhancing it.