Most managers that I've worked under in large companies do not have a formal management degree. Instead, they started out as a contributing technical member and then moved into management as opportunities arise. If you work at a large company for more that a few years, you'll likely have a lot of opportunities to move into a management position.
I would focus on a specific technical discipline that you enjoy, and the management opportunities will soon follow if you are passionate about your work.
I would focus on a specific technical discipline that you enjoy, and the management opportunities will soon follow if you are passionate about your work.