What types of positions might involve improving processes using CMMI and Scrum?

Question

I'm an IT student and have been working on team based projects for several years. I've read some papers about CMMI and Scrum; this is really interesting to me and I would like to know what kind of jobs involve improving processes inside an organization.

What kind of studies can lead someone towards these jobs? Management? I doubt it's only that, as CMMI/Scrum affect management as well, I think it's something above it all, that will hold together the organization.