Yes to everything HoosierDaddy said.
Also - Undergrad institution, Major, undergrad GPA, and GMAT can look good, but don't help that much. Your work experience is by far the biggest factor.
If your a career switcher, even in a FT program, its not too bad if your switching roles / same industry or switching industry / similar role. Switching industry and role is hard, but not impossible.
- Network/hussle to get a pre-MBA internship
- Get some part-time experience at a firm, maybe have to go small and network your way in.
- At least: do coffee meetings and info interviews with people in your target field so you'll have some warm contacts.
Couple things for Finance/Investment Management (only because that's the stuff I know more about):
- If you want to switch into finance, passing the CFA level 1 could help (but June is the only opportunity you have to do this before school and its a lot to study for)
- If you have access to a Bloomberg terminal, you can take some tutorials and tests to get certified. We have several on campus, I've only done the basic training, but employers like to talk about it in interviews.
- Take a modeling/valuation course. Chances are, these guys will come to campus anyway for weekend workshops, and you can take the course at a deep discount (email the school or finance club about this). But you could do this before school for a leg up. Employers like to ask about this on my resume too.